US20070268675A1 - Electronic device substrate, electronic device and methods for fabricating the same - Google Patents
Electronic device substrate, electronic device and methods for fabricating the same Download PDFInfo
- Publication number
- US20070268675A1 US20070268675A1 US11/701,337 US70133707A US2007268675A1 US 20070268675 A1 US20070268675 A1 US 20070268675A1 US 70133707 A US70133707 A US 70133707A US 2007268675 A1 US2007268675 A1 US 2007268675A1
- Authority
- US
- United States
- Prior art keywords
- electronic device
- layer
- substrate
- device substrate
- electrical insulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 238000000034 method Methods 0.000 title claims description 79
- 238000007747 plating Methods 0.000 claims abstract description 164
- 229910052751 metal Inorganic materials 0.000 claims abstract description 82
- 239000002184 metal Substances 0.000 claims abstract description 82
- 239000004020 conductor Substances 0.000 claims abstract description 59
- 239000011810 insulating material Substances 0.000 claims abstract description 48
- 239000010410 layer Substances 0.000 claims description 322
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 119
- 239000011889 copper foil Substances 0.000 claims description 58
- 238000000926 separation method Methods 0.000 claims description 42
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 39
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- 238000004519 manufacturing process Methods 0.000 claims description 33
- 229910000679 solder Inorganic materials 0.000 claims description 23
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 239000004642 Polyimide Substances 0.000 claims description 18
- 229910052759 nickel Inorganic materials 0.000 claims description 18
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- 239000002356 single layer Substances 0.000 claims description 18
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 11
- 229910052737 gold Inorganic materials 0.000 claims description 11
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- 229910052763 palladium Inorganic materials 0.000 claims description 10
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- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
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- XEMZLVDIUVCKGL-UHFFFAOYSA-N hydrogen peroxide;sulfuric acid Chemical compound OO.OS(O)(=O)=O XEMZLVDIUVCKGL-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/12—Mountings, e.g. non-detachable insulating substrates
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/4652—Adding a circuit layer by laminating a metal foil or a preformed metal foil pattern
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
- H01L21/4846—Leads on or in insulating or insulated substrates, e.g. metallisation
- H01L21/4853—Connection or disconnection of other leads to or from a metallisation, e.g. pins, wires, bumps
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
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- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
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- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
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- H01L23/49827—Via connections through the substrates, e.g. pins going through the substrate, coaxial cables
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- H05K1/00—Printed circuits
- H05K1/02—Details
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- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
- H05K3/205—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern using a pattern electroplated or electroformed on a metallic carrier
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- H—ELECTRICITY
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- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/465—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits by applying an insulating layer having channels for the next circuit layer
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- H—ELECTRICITY
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- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/4682—Manufacture of core-less build-up multilayer circuits on a temporary carrier or on a metal foil
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- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/68345—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used as a support during the manufacture of self supporting substrates
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- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
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- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/111—Pads for surface mounting, e.g. lay-out
- H05K1/112—Pads for surface mounting, e.g. lay-out directly combined with via connections
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- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
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- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10621—Components characterised by their electrical contacts
- H05K2201/10674—Flip chip
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- H05K2203/01—Tools for processing; Objects used during processing
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- H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
- H05K2203/0264—Peeling insulating layer, e.g. foil, or separating mask
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- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/0733—Method for plating stud vias, i.e. massive vias formed by plating the bottom of a hole without plating on the walls
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- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0017—Etching of the substrate by chemical or physical means
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- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/107—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by filling grooves in the support with conductive material
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- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/108—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by semi-additive methods; masks therefor
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- H05K3/22—Secondary treatment of printed circuits
- H05K3/24—Reinforcing the conductive pattern
- H05K3/244—Finish plating of conductors, especially of copper conductors, e.g. for pads or lands
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
Definitions
- the present invention relates to an electronic device substrate, an electronic device and methods for fabricating the same, and in more particularly, to an electronic device substrate, an electronic device substrate, and methods for fabricating the same, that enable a core substrate-less package having an internal electrical wiring, in which a load of a process of removing a core substrate is reduced, by using a physical peeling off as well as a chemical dissolution, an electrochemical dissolution, or a mechanical polishing process.
- JP-A-2004-253674 Japanese Patent Laid-Open No. 2004-253674
- FIG. 3 Japanese Patent Laid-Open No. 2004-253674
- This electronic device is fabricated as follows. Electronic parts are mounted on a substrate comprising a core substrate and a metal electrode connected on the core substrate, and a predetermined electrode is electrically connected to the electronic parts by a thin metallic wire and sealed by a resin. Thereafter, the core substrate is physically peeled off, so that the metal electrode is exposed to a lower surface (back surface) of the package.
- this electronic device is covered with the sealing resin and has a leadless structure in which the metal electrode is exposed at the back surface, a substrate part is only the metal electrode, so that this electronic device is very thin.
- JP-A-2004-111536 Japanese Patent Laid-Open No. 2004-111536
- a first wiring layer is disposed on a first interlayer insulating layer, a second interlayer insulating layer is disposed thereon, the second interlayer insulating layer is provided with an opening at a predetermined position, a via-conductor is disposed at the predetermined position, and interlayer insulating layers each having a wiring layer and a via-conductor are sequentially disposed thereon for a desired number of times, and a metal supporting frame is provided on the layers, to provide a substrate configuration.
- the electronic device is construed by a general flip-chip fabrication method in which a semiconductor is further connected to this substrate via a metal bump.
- the multilayer wiring is possible by virtue of the interlayer dielectric layer.
- a very thin substrate such as the electronic device disclosed in Japanese Patent Laid-Open No. 2004-253674 cannot be realized.
- the multilayer substrate can be fabricated by virtue of the existence of the interlayer insulating layer in the configuration disclosed by Japanese Patent Laid-Open No. 2004-253674.
- this multilayer substrate has a configuration in that copper layers are laminated on a top surface and a bottom surface of the interlayer insulating layer for each of single layer plates and the wiring pattern is disposed thereon, the via-conductor for connecting between the wiring patterns on the top and bottom surfaces is required.
- FIGS. 18A to 18C are cross sectional views for briefly explaining a process for via processing and conductive plating.
- copper layers 62 are laminated at a top surface and a bottom surface of an interlayer insulating layer 61 in a substrate as shown in FIG. 18A , and a via 63 is formed as shown in FIG. 18B .
- a conductive plating 64 is provided for connecting the copper layers 62 (wiring patterns) at the top and bottom surfaces around the via 63 . This means that a total thickness of the upper and lower wiring patterns is required in addition to a thickness of the interlayer insulating layer 61 for a total thickness of each of the single layer plates.
- a plating thickness is required to be about 10 ⁇ m on the wiring pattern for obtaining a bonding reliability. Accordingly, a total thickness of the wiring pattern is generally about 25 to 30 ⁇ m, as a result of addition of the plating thickness to the thickness of the wiring pattern originally provided. For fabricating the multilayer substrate, the thickness of the wiring pattern is required for the number of wiring pattern layers.
- the second problem is that a size of a wiring part is large. This is also caused by the via-conductor.
- the reason is that a wiring pattern forming process is not the same process as a via boring process, dimensions of formed articles should have allowance for absorbing a gap between positions of each of the formed articles in these two processes.
- FIG. 18D is a schematic plan view of a periphery of a via.
- the via-land 65 When a conductive part (via-land 65 ) is positioned to surround around the via 63 and a pattern (wiring 66 ) conducted from a part of the via-land 65 is laid out, the via-land 65 is generally formed to have an allowance of about 50 ⁇ m greater than a via diameter at one side, and of about 100 ⁇ m greater than the via diameter, with considering a positioning precision in the via formation and a positioning precision in the pattern formation, for securely connecting the wiring pattern to be connected to the via-conductor.
- flip-chip method for connecting the substrate to the electronic part via the bump, as a method for reducing a size and a thickness of the electronic device.
- bonding electrodes for the substrate can be formed inside the electronic part, so that the electronic device can be miniaturized compared with a case where the electronic part and the substrate are connected with each other via a thin metallic wire.
- a height for installing the thin metallic wire is necessary. In the flip-chip method, this height for installing the thin metallic wire is only a height for installing the bump, so that the miniaturization can be realized.
- the electrode in the electronic part is small by reason of the minute processing and an interval between the electrodes is dense. Therefore, it is necessary to actually form an internal wiring on the substrate and to determine a position of an external electrode such that the external electrode can be mounted on a mother board for mounting the electronic device, so as to provide the electronic device. Accordingly, forming a thin and small substrate similar to a typical substrate-less package to have multilayers means that the flip-chip method can be adopted in the general core substrate-less package, and it is very important to promote the small sizing and miniaturization of the electronic device.
- an object of the present invention to provide an electronic device substrate, an electronic device comprising the electronic device substrate and the methods for fabricating the same in that a multilayer wiring can be provided while having a very thin substrate used in the core substrate-less package.
- an electronic device substrate comprises:
- an external connection wiring layer provided on the core substrate comprising an external connection terminal and a first electrical insulating material
- circuit wiring layer laminated for one or more layers comprising an internal conductor pattern and a second electrical insulating material, a surface of the internal conductor pattern being in a same plane as a surface of the second electrical insulating material.
- the electronic device substrate according to the present invention may comprise at least one of following features.
- the circuit wiring layer further comprises a via-hole conductor provided at an aperture of the second electrical insulating material, and the via-hole conductor is integrated with the internal conductor pattern.
- the via-hole conductor comprises one or more plating films.
- An uppermost layer of the circuit wiring layer is an electronic-parts mounting layer, and an uppermost layer of the plating films in the electronic parts-mounting layer is subjected to a surface treatment necessary for connection with an electronic part.
- An uppermost layer of the circuit wiring layer is an electronic-parts mounting layer, and an external conductor pattern is formed on a surface for mounting an electronic part.
- the external conductor pattern comprises a copper foil.
- the core substrate comprises a copper foil, a stainless steel foil, an aluminum foil, an aluminum alloy foil, a nickel foil, a nickel alloy foil, a tin foil or a tin alloy foil
- the core substrate comprises a carrier layer composed of a metal; a separation layer formed on the carrier layer; and a metal layer formed on the separation layer and disposed at a side of the external connection wiring layer.
- An adhesion force between the metal layer and the carrier layer via the separation layer is smaller than that between the metal layer and the external connection wiring layer.
- the separation layer comprises an organic system separation layer or an inorganic system separation layer.
- the metal layer comprises a copper foil, a copper alloy foil, a stainless steel foil, an aluminum foil, an aluminum alloy foil, a nickel foil, a nickel alloy foil, a tin foil or a tin alloy foil.
- the electron device substrate further comprises a supporting substrate attached to the core substrate.
- the supporting substrate comprises an insulating film.
- the second electrical insulating material comprises a solder resist or a photosolder resist.
- the second electrical insulating material comprises a polyimide or an epoxy when provided as an uppermost layer disposed at an opposite side to the core substrate, and comprises a solder resist or a photosolder resist when provided as a layer other than the uppermost layer.
- the internal conductor pattern comprises a copper, a copper alloy, a nickel, or a nickel alloy.
- the via-hole conductor comprises a single layer or a laminated layer composed of a gold, a silver, a copper, a copper alloy, a nickel, a nickel alloy, or palladium.
- the external connection terminal comprises an external connection plating film formed at an aperture of the first electrical insulating film.
- the external connection wiring layer further comprises a tin-diffusion preventing plating film formed at an aperture of the first electrical insulating film, and the tin-diffusion preventing plating film is integrated with the external connection plating film.
- a thickness of the tin-diffusion preventing plating film is 5 ⁇ m or more when the tin-diffusion preventing plating film comprises a copper or copper alloy plating, and 3 ⁇ m or more when the tin-diffusion preventing plating film comprises a nickel or nickel alloy plating.
- a method for fabricating an electronic device substrate comprises the steps of:
- the method for fabricating an electronic device substrate according to the present invention may comprise at least one of following features.
- the method for fabricating an electronic device substrate further comprises the steps of:
- the method for fabricating an electronic device substrate further comprises the steps of:
- the core substrate comprises a composite substrate comprising a carrier layer, a separation layer, and a metal layer.
- the core substrate comprises a composite substrate comprising a carrier layer, a separation layer, and a metal layer, and a supporting substrate is integrated with the composite substrate.
- the supporting substrate comprises an electrical insulation film having an adhesive, and the supporting substrate is integrated with the composite substrate by using the adhesive.
- the first electrical insulating material is adhered to the core substrate by coating or pressure welding.
- an electronic device comprises:
- an electronic device substrate including:
- the electronic device may comprise according to the present invention at least one of following features.
- the external connection terminal is connected to a solder ball.
- the electronic part is electrically connected to the electronic device substrate via a metal thin wire.
- the electronic part is electrically connected to the electronic device substrate via a bump.
- a method of fabricating an electronic device comprises the steps of:
- the electronic device substrate comprising a core substrate, an external connection wiring layer provided on the core substrate comprising an external connection terminal and a first electrical insulating material, and a circuit wiring layer laminated for one or more layers comprising an internal conductor pattern and a second electrical insulating material, a surface of the internal conductor pattern being in a same plane as a surface of the second electrical insulating material;
- the method for fabricating an electronic device substrate according to the present invention may comprise at least one of following features.
- the core substrate is removed by chemical dissolution, electrochemical dissolution, machine polishing or combination thereof.
- the core substrate comprises a plurality of layers including at least a separation layer formed between a carrier layer and a metal layer, and a layer including the carrier layer and the metal layer is physically separated from another layer including the metal layer, and the metal layer is removed by chemical dissolution, electrochemical dissolution, machine polishing or combination thereof.
- the electronic part includes chip components such as a capacitor, a transistor, a diode, an electric filter as well as an IC (integrated circuit).
- chip components such as a capacitor, a transistor, a diode, an electric filter as well as an IC (integrated circuit).
- an electronic device substrate an electronic device comprising the electronic device substrate and the methods for fabricating the same in that a multilayer wiring can be provided while having a very thin substrate used in the core substrate-less package.
- FIG. 1 is a cross sectional view of an electronic device substrate in a first preferred embodiment according to the present invention
- FIGS. 2A to 2N are explanatory diagrams showing a manufacturing process of the electronic device substrate of FIG. 1 ;
- FIGS. 3A and 3B are cross sectional views of an electronic device in a second preferred embodiment according to the present invention, wherein FIG. 3A is a cross sectional view showing an electronic device using the electronic device substrate in the first preferred embodiment, and FIG. 3B is a cross sectional view showing an electronic device using a variation of the electronic device substrate in the first preferred embodiment;
- FIGS. 4A to 4E are explanatory diagrams showing a manufacturing process of the electronic device of FIG. 3A ;
- FIG. 5 is a cross sectional view of an electronic device substrate in a third preferred embodiment according to the invention.
- FIGS. 6A to 6N are explanatory diagrams showing a manufacturing process of the electronic device substrate of FIG. 5 ;
- FIGS. 7A to 7G are explanatory diagrams showing a manufacturing process of the electronic device in a fourth preferred embodiment using the electronic device substrate in the third preferred embodiment;
- FIG. 8 is a cross sectional view of an electronic device substrate in a fifth preferred embodiment
- FIGS. 9A to 9P are explanatory diagrams showing a manufacturing process of the electronic device substrate of FIG. 8 ;
- FIG. 10 is an explanatory diagram showing a manufacturing process of an electronic device in a sixth preferred embodiment using the electronic device substrate in the fifth preferred embodiment;
- FIG. 11 is a cross sectional view of an electronic device substrate in a seventh preferred embodiment according to the invention.
- FIGS. 12A to 12Q are explanatory diagrams showing a manufacturing process of the electronic device substrate of FIG. 11 ;
- FIGS. 13A and 13B are cross sectional views of an electronic device in an eighth preferred embodiment according to the invention, wherein FIG. 13A is a cross sectional view showing an electronic device using an electronic device substrate in the seventh preferred embodiment, and FIG. 13B is a cross sectional view showing an electronic device using a variation of the electronic device substrate in the seventh preferred embodiment;
- FIG. 14A to 14G are explanatory diagrams showing a manufacturing process of the electronic device in the eighth preferred embodiment using the electronic device substrate in the seventh preferred embodiment;
- FIG. 15 is a cross sectional view of a BGA type electronic device in an embodiment according to the present invention.
- FIG. 16 is a cross sectional view of a wire bonding type electronic device in an embodiment according to the present invention.
- FIGS. 17A and 17B are cross sectional views of the electronic device substrates in the embodiment according to the present invention, wherein FIG. 17A is a cross sectional view showing the electronic device substrate (four layers), and FIG. 17B is a cross sectional view showing the electronic device substrate (triple layers); and
- FIGS. 18A to 18D are explanatory diagrams showing a via in the electronic device substrate, wherein FIGS. 18A to 18C are cross sectional views for briefly explaining a process of via processing and conductive plating, and FIG. 18D is a schematic plan view of a periphery of the via.
- FIG. 1 is a cross sectional view of the electronic device substrate in the first preferred embodiment according to the present invention.
- An electronic device substrate 10 comprises a thin plate-like metal core substrate 11 , an external connection wiring layer 100 provided on the metal core substrate 11 , and an electronic parts-mounting layer 110 provided on the external connection wiring layer 100 .
- a copper foil is most preferable from point of views such as of easiness of procurement, cost, high electrical conductivity, easiness of removal in the final process, however, the present invention is not limited thereto, and a stainless steel foil, an aluminum foil, an aluminum alloy foil, a nickel foil, a nickel alloy foil, a tin foil or a tin alloy foil may be used.
- the metal core substrate 11 it is necessary to provide the metal core substrate 11 with a thickness not less than 20 ⁇ m, since a mechanical durability is required in transportation and processing.
- the metal core substrate 11 should be finally removed.
- the thickness of the metal core substrate 11 is reduced by reinforcing with the external connection wiring layer 100 (PSR film 101 ), so that a time required for the dissolution or polishing in the removal process of the metal core substrate 11 can shorten.
- the mechanical durability and the abbreviation of the removal processing time may be expected by using the copper foil with a thickness of 12 ⁇ m.
- the external connection wiring layer 100 is provided on the metal core substrate 11 and comprises a photosolder resist (referred as “PSR”, hereinafter) film 101 composed of an electrical insulating material that is provided with an aperture 102 , to which a conductive plating (a first plating film 103 , a second plating film 104 , and a third plating film 105 when viewed from a side of the metal core substrate 11 ) is applied.
- a conductive plating a first plating film 103 , a second plating film 104 , and a third plating film 105 when viewed from a side of the metal core substrate 11
- a surface of the third plating film 105 is in the same plane as a surface of the PSR film 101 .
- a combination of the first to third plating films 103 to 105 and the PSR film 101 constitutes the external connection wiring layer 100 , and a thickness of the external connection wiring layer 100 is determined to be not greater than 30 ⁇ m, so as to reduce the thickness of the electronic device.
- an organic resist film such as indissoluble solder resist and photoresist may be used.
- the first plating film 103 is subjected to a surface treatment required for connecting this electronic device to the outside when the electronic device is completed.
- a gold, a silver, a palladium, a nickel, a tin, a solder plating or the like is suitable.
- the electronic device is mounted by pressure welding with using an anisotropic conductive film (ACF), an anisotropic conductive paste (ACP), a non-conductive paste (ACP), a non-conductive film (NCF), a non-conductive paste (NCP) or the like, a gold, a silver, a palladium, a nickel or the like is suitable.
- the second plating film 104 is provided as a barrier layer for preventing diffusion of tin in the solder into the gold or the like (tin-diffusion preventing barrier layer), when the solder is used for connecting the electronic device to the mounting substrate, after an electronic device in the second preferred embodiment described later is fabricated by using the electronic device substrate in the first preferred embodiment.
- a copper plating, a copper alloy plating, a nickel plating, a nickel alloy plating or the like may be used as a material of the second plating film 104 .
- a thickness of the second plating film 104 is not less than 5 ⁇ m in a case where the copper or copper alloy plating is used, and not less than 3 ⁇ m in a case where the nickel plating or the nickel alloy plating is used.
- the third plating film 105 is provided for taking an electrical connection between the conductive film 113 which is the lowermost layer of the electronic parts-mounting layer 110 described below at least in one part.
- a copper is most preferable from point of views such as high electrical conductivity and cost, however, may be a copper alloy, a nickel, a nickel alloy or the like.
- the third plating film 105 may be the same metal material as the second plating film 104 , and the second plating film 104 may be formed such that a surface thereof is in the same plane as the surface of the PSR film 101 .
- the electronic parts-mounting layer 110 is provided on the external connecting wiring layer 100 and comprises a PSR film 111 that is provided with an aperture 112 , to which a conductive film 113 and a conductive plating (a fourth plating film 114 , a fifth plating film 115 , and a sixth plating film 116 ) are applied.
- the fourth to sixth plating films 114 to 116 are configured with considering the installation of the electronic part and electrical bonding with a metal thin wire.
- a combination of the conductive film 113 , the fourth to sixth plating films 114 to 116 and the PSR film 111 constitutes the electronic parts-mounting layer 110 , and a thickness of the electronic parts-mounting layer 110 is determined to be not greater than 30 ⁇ m, so as to reduce the thickness of the electronic device.
- an organic resist film such as an indissoluble solder resist and a photoresist may be used.
- the conductive film 113 is provided for taking an electrical connection with the third plating layer 105 which is the uppermost layer of the external connection wiring layer 100 at least in one part.
- a copper is most preferable from point of views such as high electrical conductivity and cost, however, may be a copper alloy, a nickel, a nickel alloy or the like.
- the fourth plating film 114 is provided as an intermediate conductive plating for taking an electrical connection between the conductive film 113 and the fifth plating film 115 .
- a copper plating (with a thickness of e.g. 10 ⁇ m) may be used from point of views such as high electrical conductivity and cost.
- Other materials such as a copper alloy, a nickel, a nickel alloy or the like may be also used.
- the fourth plating film 114 may be the same metal material as the fifth plating film 115 .
- a material of the fifth plating film 115 is required to be composed of a hard material, since a bump 202 of an electronic part 201 is electrically connected to the sixth plating film 116 by using supersonic wave, thermo-compression bonding or the combination thereof.
- the nickel which is comparatively hard material may be used (with a thickness of e.g. 0.75 ⁇ m).
- a nickel or a palladium is suitable, however, it is not the limited thereto, and other material may be used in accordance with the bonding method of electronic part.
- the sixth plating film 116 is an uppermost layer of the electronic parts-mounting layer 110 for mounting the bump 202 of the electronic part 201 .
- the sixth plating film 116 is subjected to the surface treatment which is necessary for bonding with the electronic part, and provided for taking an electrical connection with the bump 202 of the electronic part 201 .
- a gold, a silver, a palladium or the like may be used as the material of the sixth plating film 116 .
- a gold, a tin, a palladium, a solder plating or the like is required, when the electronic parts on which a gold bump or a solder bump is formed are bonded by the flip-chip method.
- FIGS. 2A to 2N are explanatory diagrams showing a manufacturing process of the electronic device substrate of FIG. 1 .
- a copper foil having a thickness of e.g. 12 ⁇ m is prepared as a metal core substrate 11 .
- a PSR film 101 is coated to have a thickness of e.g. 15 ⁇ m by screen printing or the like as shown in FIG. 2B .
- the PSR film 101 may be bonded by pressure welding.
- the PSR film 101 is covered with a photomask 107 , and UV ray 108 is irradiated at a region to be provided as an external connecting terminal.
- an aperture 102 is formed by development in a desired configuration on the PSR film 101 .
- a first plating film 103 , a second plating film 104 , and a third plating film 105 are sequentially formed on the aperture 102 by electrolysis plating.
- a conductive plating film comprising the first to third plating films 103 to 105 is formed on the aperture 102 to have a predetermined thickness such that a surface of the conductive plating film is on the same plane as a surface of the PSR film 101 , to provide an external connection wiring layer 100 .
- a conductive film 113 composed of the copper or the like is formed in a shape of foil by vacuum deposition on an entire surface of the PSR film 101 and the third plating film 105 .
- the conductive film 113 is processed to have a desired configuration by etching or the like.
- a technique of bonding a conductive foil with a conductive adhesive may be used other than the vacuum deposition, and also a sputtering method can be used.
- a PSR film 111 is applied to an upper surface of the PSR film 101 and the conductive film 113 .
- an aperture 112 is formed at a predetermined position of the conductive film 113 by using a photomask 123 , similarly to a boring process of the external connection wiring layer 100 .
- a fourth plating film 114 , a fifth plating film 115 , and a sixth plating film 116 are sequentially formed on the aperture 112 by conductive plating to provide an electronic parts-mounting layer 110 .
- an electronic device substrate 10 is fabricated.
- the electronic device substrate in the first preferred embodiment has a configuration in which a thin plate-like electrical insulating material is provided with an aperture, a conductor is formed in the aperture of the electrical insulating material, a single layer plate is provided by forming a via-hole conductor that functions as a conductive pattern, and a plurality of single layer plates formed similarly thereto are laminated, while taking a conduction between upper and lower wirings by contacting the aforementioned conductors in the upper and lower layers each other.
- the wiring patterns conventionally formed on the upper and lower surfaces of the electrical insulating material is embedded in an electrical insulation layer, so that only a thickness of the electrical insulation layer is equivalent to a thickness of a single layer which constitutes a multilayer substrate.
- the thickness of the single layer is thinner by a thickness of the wiring pattern than that of a normal substrate. Therefore, it is possible to provide a thin electronic device in that both of a very thin substrate normally found in the core substrate-less package and a multilayer wiring configuration are realized.
- a via configuration is not required, since the wiring patterns between the upper and lower layers are connected with each other by directly laminating the single layer plates as described above as the upper and lower layers. According to this structure, a land of the via-hole for electrically connecting the electronic parts-mounting layer and the external connection wiring layer is also unnecessary. Therefore, it is possible to provide a small sized electronic device by reducing a surface of the wiring pattern while using the multilayer substrate.
- a layer provided for an external connecting terminal and a layer provided for a via-hole are respectively required. According to the first preferred embodiment, these layers can be combined into a single layer, so that it is effective for reducing the thickness of the substrate.
- FIGS. 3A and 3B are cross sectional views of an electronic device in the second preferred embodiment according to the present invention, wherein FIG. 3A is a cross sectional view showing an electronic device using the electronic device substrate in the first preferred embodiment, and FIG. 3B is a cross sectional view showing an electronic device using a variation of the electronic device substrate in the first preferred embodiment.
- a width of the conductive plating films (comprising the first to third plating films 103 to 105 ) of the external connection wiring layer 100 is made broader than that of the first preferred embodiment, and a width of the conductive film 113 of the electronic parts-mounting layer 110 and the conductive plating films (comprising the fourth to sixth plating films 114 to 116 ) are made narrower than that of the first preferred embodiment. Further, both ends of the conductive film 113 and the conductive plating films are dislocated from both sides of the electronic device to a portion in vicinity of a center, namely, a distance from the both sides of the electronic device to the conductive film 113 and the conductive plating films are broadened.
- An electronic device 200 A shown in FIG. 3A comprises an electronic device substrate 10 in the first preferred embodiment and an electronic part 201 electrically connected to an electronic parts-mounting layer 110 of the electronic device substrate 10 via a bump 202 .
- a metal core substrate 11 of the electronic device substrate 10 is already removed.
- the electronic part 201 and the electronic parts-mounting layer 110 are fixed to each other by means of an adhesive 203 , so as to reinforce the electrical connection between the bump 202 and the electronic parts-mounting layer 110 .
- a circumference of the electronic part 201 is covered with a sealing resin 204 for protecting the electronic part 201 .
- a conductive plating of the external connection wiring layer 100 of the electronic device substrate 10 comprises a first plating film 103 used for external connection, a second plating film 104 functioning as a barrier layer for preventing a trouble due to diffusion of tin (Sn) in the solder into a metal of an external terminal, when the solder is used for connecting the completed electronic device to an external substrate (mounting substrate: mother board), and a third plating film 105 used for electrically connecting with the electronic parts-mounting layer 110 .
- the electronic parts-mounting layer 110 comprises a conductive film 113 electrically connected to the third plating film 105 and a fourth to sixth plating films 114 to 116 as via-hole conductors to provide a single unit.
- the via-hole conductor is integrated with the plating films.
- the conductive film 113 has a function as a via-hole conductor for electrical connection other than a function as an internal circuit wiring (conductor pattern).
- an electrical signal of the electronic part 201 is transmitted to the first plating film 103 through the bump 202 , the conductive plating films comprising the fourth to sixth plating films 114 to 116 of the electronic parts-mounting layer 110 , the conductive film 113 , and the second and third plating films 104 , 105 of the external connection wiring layer 100 .
- An electronic device 200 B shown in FIG. 3B has a configuration and functions similar to the electronic device 200 A, except that the variation of the electronic device substrate 10 in the first preferred embodiment is used.
- FIGS. 4A to 4E are explanatory diagrams showing a manufacturing process of the electronic device of FIG. 3A .
- an electronic device substrate 10 in the first preferred embodiment is prepared. Then, as shown in FIG. 4A , a bump 202 is provided at an output electrode of the electronic part 201 .
- the electronic part 201 is bonded by the flip-chip method to a sixth plating film 116 of an electronic parts-mounting layer 110 of the electronic device substrate 10 .
- the electronic part 201 and the electronic parts-mounting layer 110 are fixed to each other by means of an adhesive 203 , so as to reinforce the electrical connection between the bump 202 and the electronic parts-mounting layer 110 .
- the electronic part 201 and an electronic parts-mounting surface of the electronic parts-mounting layer 110 are covered with a sealing resin 204 by transfer molding for protecting the electronic part 201 .
- the metal core substrate 11 is removed by chemical dissolution, electrochemical dissolution, machine polishing or combinations thereof to provide a core substrate-less multilayer wiring type electronic device 200 A.
- the electronic device 200 B shown in FIG. 3B can be fabricated similarly to the electronic device 200 A.
- the flip-chip bonding can be conducted while using the core substrate-less package.
- the conventional core substrate-less package such a configuration cannot be formed since the internal wiring is same as the external electrode (For example, FIG. 1 of JP-A-2004-253674).
- the wiring part has a double layer wiring structure by using the core substrate-less package, it is possible to separate the external electrode from the internal wiring, so that a distance between the external electrodes can be varied from a narrow pitch between the electrodes on the electronic part to a pitch required for mounting the electronic device by utilizing the internal wiring.
- a width of the conductive film 113 of the electronic parts-mounting layer 110 and the conductive plating film are reduced such that the position of the conductive film 113 of the electronic parts-mounting layer 110 are dislocated from the sides of the electronic device to the center part. Therefore, an area of the electronic device can be reduced compared with that of the electronic device 200 A.
- FIG. 5 is a cross sectional view of an electronic device substrate in the third preferred embodiment according to the present invention.
- An electronic device substrate 20 has a configuration similar to that of the electronic device substrate in the first preferred embodiment, except that the metal core substrate 11 that is the core substrate is replaced with a copper foil 21 with carrier. Therefore, configurations of the external connection wiring layer 100 and the electronic parts-mounting layer 110 are same as those of the first preferred embodiment.
- the copper foil 21 with carrier comprises a metal layer 22 , a carrier layer 24 , and a separation layer 23 disposed between the metal layer 22 and the carrier layer 24 .
- the metal layer 22 is facing to a PSR film 101 and a first plating film 103 of an external connection wiring layer 100 .
- FIGS. 6A to 6N are explanatory diagrams showing a manufacturing process of the electronic device substrate of FIG. 5 .
- a copper foil 21 with carrier having a triple layer configuration comprising a metal layer 22 , a carrier layer 24 and a separation layer 23 between the metal layer 22 and the carrier layer 24 is prepared.
- a PSR film 101 composed of an electrical insulating material is coated at a side where the metal layer 22 is provided, to have a thickness of e.g. 15 ⁇ m by screen printing similarly to the first preferred embodiment.
- the copper foil 21 with carrier is a base material in which the separation layer 23 with a weak adhesive property that can be exfoliated in a post-process is formed on the metal layer 22 composed of a thick metal foil (herein, a copper foil) having a thickness not less than 18 ⁇ m, and the carrier layer 24 composed of a thin metal foil (having a thickness of e.g. 1 to 5 ⁇ m) is formed thereon by the electrolytic process, to provide a metal foil (herein, a copper foil).
- a copper alloy foil, a stainless steel foil, an aluminum foil, an aluminum alloy foil, a tin foil, or a tin alloy foil may be used other than the copper foil.
- the metal layer 22 and the separation layer 23 can be separated from each other by mechanical separation in the post-process, by increasing an adhesion force between the separation layer 23 and the carrier layer 24 than that between the separation layer 23 and the metal layer 22 .
- This separation layer 23 may be an organic system separation layer, or an inorganic system separation layer, if the layers have a difference in adhesion force.
- FIGS. 6C to 6N Since the following manufacturing process ( FIGS. 6C to 6N ) is similar to that in the first preferred embodiment, an explanation thereof is omitted.
- the copper foil 21 with carrier is used in the third preferred embodiment, a physical separation method can be used in the removal process of the copper foil 21 with carrier which is the core substrate in the third preferred embodiment, so that a time for removing the metal layer 22 remained after this separation can be shortened.
- an electronic device using the electronic device substrate 20 in the third preferred embodiment has a configuration similar to that of the second preferred embodiment, since the copper foil 21 with carrier is removed in the manufacturing process.
- FIGS. 7A to 7G are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the third preferred embodiment.
- an electronic device substrate 20 in the third preferred embodiment is prepared.
- a bump 202 is provided at an output electrode of the electronic part 201 .
- FIGS. 7B to 7D Since a part of the manufacturing process ( FIGS. 7B to 7D ) is similar to that in the second preferred embodiment, an explanation thereof is omitted.
- a separation layer 23 and a carrier layer 24 are removed from a metal layer 22 of a copper foil 21 with carrier by the mechanical separation, so that a thin metal layer 22 is remained as shown in FIG. 7F .
- a sulfuric acid-hydrogen peroxide mixed aqueous solution is jetted to the metal layer 22 , to remove the metal layer 22 by the chemical dissolution. Etching of the metal layer 22 is conducted until the first plating film 103 of the external connection wiring layer 100 is exposed. The first plating film 103 functions as etching stopper for the metal layer 22 .
- the core substrate-less multilayer wiring type electronic device 200 A can be obtained. In similar manner, the electronic device 200 B can be also obtained.
- the copper foil 21 with carrier is used in the fourth preferred embodiment, a time for removing the core substrate can be shortened as described in the effect of the third preferred embodiment.
- FIG. 8 is a cross sectional view of an electronic device substrate in the fifth preferred embodiment according to the present invention.
- An electronic device substrate 30 has a configuration similar to that of the electronic device substrate in the third preferred embodiment, and further comprises a tape member 31 provided on one side (a lower surface) of the copper foil 21 with carrier, and the copper foil 21 with carrier is facing to the external connection wiring layer 100 at another side (an upper surface thereof).
- the copper foil 21 with carrier having the separation layer 23 between the metal layer 22 and the carrier layer 24 is illustrated as a single layer for convenience.
- the tape member 31 comprises a polyimide tape 33 as an insulation film, and an adhesive 32 with a thickness of 12 ⁇ m coated on the polyimide tape 33 .
- the tape member 31 functions as a supporting substrate (holding function) to facilitate a transportation of the electronic device substrate in assembling process of the electronic device.
- FIGS. 9A to 9P are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the fifth preferred embodiment.
- a copper foil 21 with carrier having a separation layer 23 between a metal layer 22 and a carrier layer 24 is illustrated as a single layer for convenience.
- the copper foil 21 with carrier having a triple layer configuration (metal layer 22 /separation layer 23 /carrier layer 24 ) is prepared.
- a tape member 31 comprising a polyimide tape 33 coated with an adhesive 32 having a thickness of e.g. 12 ⁇ m is prepared as the supporting substrate.
- the carrier layer 24 of the copper foil 21 with carrier and the adhesive 32 of the tape member 31 are piled to face to each other, and disposed between a pair of rolls 0301 a , 301 b . Then the copper foil 21 with carrier and the tape member 31 are affixed by roll laminating method. By this process, the adhesive 32 of the tape member 31 is bonded to a surface of the carrier layer 24 .
- FIG. 9D to 9P Since the following manufacturing process ( FIG. 9D to 9P ) is similar to that in the first and third preferred embodiments, an explanation thereof is omitted.
- the copper foil 21 with carrier and the tape member 31 are used as the core substrate, a physical strength of the whole substrate is increased, so that the substrate is strengthened against a stress applied to the substrate during the substrate manufacturing process and handling of the substrate during the manufacturing process substrate is facilitated.
- an electronic device using the electronic device substrate 30 in the fifth preferred embodiment has a configuration similar to that of the second preferred embodiment, since the copper foil 21 with carrier and the tape member 31 as the supporting substrate are removed in the manufacturing process.
- FIGS. 10A to 10G are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the fifth preferred embodiment.
- a copper foil 21 with carrier having a separation layer 23 between a metal layer 22 and a carrier layer 24 is illustrated as a single layer for convenience.
- an electronic device substrate 30 in the fifth preferred embodiment is prepared. Then, as shown in FIG. 10A , a bump 202 is provided at an output electrode of an electronic part 201 .
- FIG. 10B to 10D Since a part of the manufacturing process ( FIG. 10B to 10D ) is similar to that in the second preferred embodiment, an explanation thereof is omitted.
- the separation layer 23 , the carrier layer 24 , and a tape member 31 are removed from the metal layer 22 of the copper foil 21 by the mechanical separation, so that the thin metal layer 22 is remained as shown in FIG. 10F .
- a step ( FIG. 10G ) in the manufacturing process is similar to that in the fourth preferred embodiment, an explanation thereof is omitted.
- the copper foil 21 with carrier is used, a time for removing the core substrate can be shortened as described in the effect of the fourth preferred embodiment.
- the tape member 31 is applied to the copper foil 21 with carrier, a physical strength of the substrate is increased, so that troubles such as cracks of the substrate due to a stress applied to the substrate during the substrate manufacturing process can be avoided as described in the fifth preferred embodiment.
- FIG. 11 is a cross sectional view of an electronic device substrate in the seventh preferred embodiment according to the present invention.
- An electronic device substrate 40 has a configuration similar to that of the electronic device substrate in the fifth preferred embodiment, except that the electronic parts-mounting layer 110 is replaced with an electronic parts-mounting layer 130 using a polyimide material 131 attached with a copper foil 132 .
- a copper foil 21 with carrier having a separation layer 23 between a metal layer 22 and a carrier layer 24 is illustrated as a single layer for convenience.
- An electronic device substrate 40 comprises a copper foil 21 with carrier provided with a tape member 31 as the supporting substrate, an external connection wiring layer 100 provided on the copper foil 21 with carrier, and an electronic parts-mounting layer 130 provided on the external connection wiring layer 100 .
- a conductive film 113 and the polyimide material 131 having the copper foil 132 at its upper surface are provided, and a seventh plating film 135 is formed on the conductive film 113 .
- a total thickness of the conductive film 113 and the seventh plating film 135 is determined to be equal to or lower than a thickness of the polyimide material 131 .
- At least a part of the conductive film 113 is electrically connected to a third plating film 105 that is an uppermost layer of the external connection wiring layer 100 , and at least a part of the seventh plating film 135 is electrically connected to the conductive film 113 .
- An eighth plating film 136 is applied to the upper surface of the polyimide material 131 in an area equal to or larger than an area of the copper foil 132 and the seventh plating film 135 .
- the copper foil 132 and the seventh plating film 135 are electrically connected to each other.
- a ninth plating film 137 is provided to cover the eighth plating film 136 .
- a combination of the conductive film 113 , the seventh to ninth plating films 135 to 137 , the copper foil 132 , and the polyimide material 131 constitutes the electronic parts-mounting layer 130 , and a thickness of the electronic parts-mounting layer 130 is determined to be not greater than 50 ⁇ m, so as to reduce the thickness of the electronic device.
- the seventh to ninth plating films 135 to 137 are configured with considering the installation of the electronic part and electrical bonding with the metal thin wire.
- the seventh plating film 135 is provided as an intermediate conductive plating for taking an electrical connection between the conductive film 113 and the eighth plating film 136 .
- a copper plating is preferable from point of views such as high electrical conductivity and cost.
- Other materials such as a copper alloy, a nickel, or a nickel alloy may be also used.
- a thickness of the seventh plating film 135 is determined such that a surface of the seventh plating film 135 is in the same plane as a surface of the polyimide material 131 .
- the eighth plating film 136 is required to be composed of a hard material, since a bump 202 of an electronic part 201 is electrically connected to the ninth plating film 137 provided on the eighth plating film 136 by using supersonic wave, thermo-compression bonding or the combination thereof.
- the nickel which is comparatively hard material may be used (with a thickness of e.g. 0.75 ⁇ m).
- a nickel or a palladium is suitable, however, it is not the limited thereto, and other materials may be used in accordance with the bonding method of the electronic part.
- the ninth plating film 137 is an uppermost layer of the electronic parts-mounting layer 130 for mounting the electronic part 201 .
- the ninth plating film 137 is provided for taking the electrical connection with the bump 202 of the electronic part 201 .
- a gold, a silver, a palladium or the like may be used as the material of the ninth plating film 137 .
- a gold, a tin, a palladium or a solder plating or the like is required when the electronic parts, on which a gold bump or a solder bump is formed, are bonded by the flip-chip method.
- FIGS. 12A to 12Q are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the sixth preferred embodiment.
- a copper foil 21 with carrier having a separation layer 23 between a metal layer 22 and a carrier layer 24 is illustrated as a single layer for convenience.
- FIGS. 12A to 12K Since a part of the manufacturing process ( FIGS. 12A to 12K ) is similar to that in the fifth preferred embodiment, an explanation thereof is omitted.
- a polyimide material 131 as an insulation film on which a copper foil 132 is attached by adhesive or vacuum deposition is used, and a surface of an external connection wiring layer 100 including the conductive film 113 is covered with the polyimide material 131 .
- the polyimide material 131 that is in contact with the external connection wiring layer 100 and the conductive film 113 is fusion-bonded by the thermo-compression bonding.
- an aperture 134 is formed by using a mask 133 .
- the etching process is used.
- the mask 133 of a single unit can be used for etching of both materials.
- the aperture 134 can formed by using laser treatment.
- the thickness of copper foil 132 will be limited.
- the copper foil 132 provided with the aperture 134 is formed to have a desired shape for mounting an electronic part by etching or the like.
- the seventh plating film 135 , the eighth plating film 136 , and the ninth plating film 137 are sequentially formed on the aperture 134 by conductive plating to provide the electronic parts-mounting layer 130 having the polyimide material 131 with the copper foil 132 .
- the electronic device substrate 40 is fabricated.
- the electronic parts-mounting layer 130 is constituted by laminating single layer materials using the polyimide material 131 with the copper foil 132 , the number of the wiring layers can be increased by one layer while using a method approximately similar to the fifth preferred embodiment.
- FIGS. 13A and 13B are cross sectional views of an electronic device in the eighth preferred embodiment according to the present invention, wherein FIG. 13A is a cross sectional view showing an electronic device using the electronic device substrate in the seventh preferred embodiment, and FIG. 13B is a cross sectional view showing an electronic device using a variation of the electronic device substrate in the seventh preferred embodiment.
- a width of a conductive film 113 of an electronic parts-mounting layer 130 is made narrower than that of the seventh preferred embodiment, such that both ends of the conductive film 113 is dislocated from both sides of the electronic device to a portion in vicinity of a center, namely, a distance from the both sides of the electronic device to the conductive film 113 is broadened.
- FIGS. 13A and 13B same reference numerals as the electronic device substrate shown in FIG. 11 are partially omitted.
- An electronic device 300 A shown in FIG. 13A comprises an electronic device substrate 40 in the seventh preferred embodiment and an electronic part 201 electrically connected to an electronic parts-mounting layer 130 of the electronic device substrate 40 via a bump 202 .
- a copper foil 21 with carrier and a tape member 31 of the electronic device substrate 40 are already removed.
- the electronic part 201 and the electronic parts-mounting layer 130 are fixed to each other by means of an adhesive 203 , so as to reinforce the electrical connection between the bump 202 and the electronic parts-mounting layer 130 .
- a circumference of the electronic part 201 is covered with a sealing resin 204 for protecting the electronic part 201 .
- a conductive plating of the external connection wiring layer 100 of the electronic device substrate 40 comprises a first plating film 103 used for external connection, a second plating film 104 functioning as a barrier layer for preventing a trouble due to diffusion of tin (Sn) in the solder into a metal of an external terminal, when the solder is used for connecting the completed electronic device to an external substrate (mounting substrate: mother board), and a third plating film 105 used for electrically connecting with the electronic parts-mounting layer 130 , that are integrally formed.
- the electronic parts-mounting layer 130 comprises a conductive film 113 electrically connected to the third plating film 105 , a seventh plating film 135 as a via-hole conductor, that are integrally formed, a copper foil 132 as an internal circuit wiring (conductor pattern), and eighth and ninth plating films 136 , 137 electrically connected to the seventh plating film 135 and the copper foil 132 .
- the conductive film 113 has a function as a via-hole conductor for electrical connection other than a function as an internal circuit wiring (conductor pattern).
- an electrical signal of the electronic part 201 is transmitted to the first plating film 103 through the bump 202 , the conductive plating films comprising the seventh to ninth plating films 135 to 137 of the electronic parts-mounting layer 130 , the conductive film 113 , and the third plating films 105 and the second plating films 104 of the external connection wiring layer 100 .
- An electronic device 300 B shown in FIG. 13B has a configuration and functions similar to the electronic device 300 A, except that the variation of the electronic device substrate 40 in the seventh preferred embodiment is used.
- FIGS. 14A to 14G are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the seventh preferred embodiment.
- a copper foil 21 with carrier having a separation layer 23 between a metal layer 22 and a carrier layer 24 is illustrated as a single layer for convenience.
- FIGS. 14A to 14G Since the manufacturing process ( FIGS. 14A to 14G ) is similar to that in the fifth preferred embodiment except that the electronic device substrate 30 is replaced with the electronic device substrate 40 comprising the electronic parts-mounting layer 130 , an explanation thereof is omitted.
- the electronic parts-mounting layer 130 is constituted by laminating single layer materials using the polyimide material 131 with the copper foil 132 , the number of the wiring layers can be increased by one layer, so that the electronic device with higher function can be realized.
- a width of the conductive film 113 of the electronic parts-mounting layer 130 is reduced such that the position of the conductive film 113 of the electronic parts-mounting layer 130 is dislocated from the sides of the electronic device to the center part, so that an area of the electronic device can be reduced compared with that of the electronic device 300 A.
- the present invention is not limited to the preferred embodiments as described above, and can be changed within a scope of the invention which is not deviated from or goes beyond the technical concept of the present invention.
- FIG. 15 is a cross sectional view of a BGA type electronic device in the other embodiment according to the present invention.
- a LGA (land Grid Array) type electronic device in which an external output terminal is an intact plating, is shown as an example.
- a BGA (Ball Grid Array) type electronic device using a solder ball 205 as the external output terminal may be used like an electronic device 400 shown in FIG. 15 .
- FIG. 16 is a cross sectional view of a wire bonding type electronic device in another embodiment according to the present invention.
- the flip-chip method is used for mounting the electronic part 201 by means of the bump 202 .
- the electronic part 201 may be bonded to the electronic parts-mounting layer 110 by die-bonding to provide an electrical signal connection by wire bonding using a thin metallic wire (e.g. Au-wire 206 ).
- a thin metallic wire e.g. Au-wire 206
- the present invention may be applied to an electronic device in which several electronic parts are installed in a shape of array in a unit area then collectively sealed with resin, and cut into single pieces respectively corresponding to a unit device by dicing or the like.
- the electronic device manufacturing process can be conducted under a batch processing, so that a time required for fabricating the single piece of the electronic device can be shortened, compared with a case where the electronic devices are fabricated by piece by piece.
- FIGS. 17A and 17B are cross sectional views of the electronic device substrates in the preferred embodiments according to the present invention, wherein FIG. 17A is a cross sectional view showing the electronic device substrate (four layers), and FIG. 17B is a cross sectional view showing the electronic device substrate (triple layers).
- the electronic device substrate (four layers) 50 A shown in FIG. 17A comprises an internal wiring layer 1 and another internal wiring layer 2 between an external connection wiring layer 100 A and an electronic parts-mounting layer 110 .
- Each of the internal wiring layers 1 , 2 comprises a conductive film 113 as a circuit wiring (wiring pattern), a fourth plating film 114 as a via-hole conductor, and a fifth plating film 115 in an aperture of a PSR film 111 (the fifth plating film 115 may be omitted).
- the internal wiring layer 2 is provided between the internal wiring layer 1 and the electronic parts-mounting layer 110 , wirings of the internal wiring layer 1 and electronic parts-mounting layer 110 can be disposed in a shifted (or torsional) relationship, so that an increase in the area of the electronic device can be prevented, while avoiding a short circuit.
- the internal wiring layer 1 is provided on the external connection wiring layer 100 A, the circuit wiring part is not exposed to a lower (back) surface of the electronic device, so that it is possible to prevent the wirings from the short circuit due to the solder for mounting.
- the electronic device substrate (triple layers) 50 B shown in FIG. 17B comprises a single internal wiring layer 2 between an external connection wiring layer 100 B and an electronic parts-mounting layer 110 .
- the external connection wiring layer 100 A has functions of both of the internal wiring layer 1 and the external connection wiring layer 100 B in the electronic device substrate 50 A.
- a part closed to a center part of the external connection wiring layer 100 B constitutes a circuit wiring, so that the circuit wiring is exposed during the electronic device manufacturing process. Therefore, it is preferable to conduct a treatment for preventing the short circuit due to the solder for mounting.
- An electronic device with more than five layers can be realized by laminating the internal wiring layers, similarly to the electronic device with triple layers and the electronic device with four layers.
- the substrate in the present invention may be employed as a substrate used in electronic parts such as a capacitor, resistor, coil and a functional component such as a sensor, microphone, other than the semiconductor devices.
- the present invention is preferably applied to the electronic device used in a mobile telephone or IC card that is required to be thin and small.
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Abstract
Description
- The present application is based on Japanese patent application No. 2006-141336, the entire contents of which are incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to an electronic device substrate, an electronic device and methods for fabricating the same, and in more particularly, to an electronic device substrate, an electronic device substrate, and methods for fabricating the same, that enable a core substrate-less package having an internal electrical wiring, in which a load of a process of removing a core substrate is reduced, by using a physical peeling off as well as a chemical dissolution, an electrochemical dissolution, or a mechanical polishing process.
- 2. Description of the Related Art
- In accordance with technical development of recent years, a miniaturization of a package for an electronic device has been requested, so that an electronic device of so-called “core substrate-less package” is put to practical use.
- As an example of typical core substrate-less packages, a conventional electronic device is described in Japanese Patent Laid-Open No. 2004-253674 (JP-A-2004-253674, FIG. 3). This electronic device is fabricated as follows. Electronic parts are mounted on a substrate comprising a core substrate and a metal electrode connected on the core substrate, and a predetermined electrode is electrically connected to the electronic parts by a thin metallic wire and sealed by a resin. Thereafter, the core substrate is physically peeled off, so that the metal electrode is exposed to a lower surface (back surface) of the package.
- Since this electronic device is covered with the sealing resin and has a leadless structure in which the metal electrode is exposed at the back surface, a substrate part is only the metal electrode, so that this electronic device is very thin.
- In addition, as another example of the core substrate-less package, another conventional electronic device is proposed by Japanese Patent Laid-Open No. 2004-111536 (JP-A-2004-111536, FIG. 1).
- In this electronic device, a first wiring layer is disposed on a first interlayer insulating layer, a second interlayer insulating layer is disposed thereon, the second interlayer insulating layer is provided with an opening at a predetermined position, a via-conductor is disposed at the predetermined position, and interlayer insulating layers each having a wiring layer and a via-conductor are sequentially disposed thereon for a desired number of times, and a metal supporting frame is provided on the layers, to provide a substrate configuration.
- In the Japanese Patent Laid-Open No. 2004-111536 (paragraph [0038]), the electronic device is construed by a general flip-chip fabrication method in which a semiconductor is further connected to this substrate via a metal bump.
- However, according to the configuration disclosed in Japanese Patent Laid-Open No. 2004-253674, since no supporting member is provided in a circumference of the metal electrode, there is a disadvantage in that the multilayer wiring is difficult.
- In addition, according to the configuration disclosed in Japanese Patent Laid-Open No. 2004-111536, the multilayer wiring is possible by virtue of the interlayer dielectric layer. However, a very thin substrate such as the electronic device disclosed in Japanese Patent Laid-Open No. 2004-253674 cannot be realized.
- As thus described, there is the first problem in that a very thin substrate generally used in the typical core substrate-less package is not compatible with the multilayer wiring configuration. This is caused by forming the via-conductor for constituting the multilayer wiring configuration. The reason will be described in more detail as follows.
- As described above, the multilayer substrate can be fabricated by virtue of the existence of the interlayer insulating layer in the configuration disclosed by Japanese Patent Laid-Open No. 2004-253674. However, since this multilayer substrate has a configuration in that copper layers are laminated on a top surface and a bottom surface of the interlayer insulating layer for each of single layer plates and the wiring pattern is disposed thereon, the via-conductor for connecting between the wiring patterns on the top and bottom surfaces is required.
-
FIGS. 18A to 18C are cross sectional views for briefly explaining a process for via processing and conductive plating. - At first,
copper layers 62 are laminated at a top surface and a bottom surface of aninterlayer insulating layer 61 in a substrate as shown inFIG. 18A , and avia 63 is formed as shown inFIG. 18B . Next, as shown inFIG. 18C , aconductive plating 64 is provided for connecting the copper layers 62 (wiring patterns) at the top and bottom surfaces around thevia 63. This means that a total thickness of the upper and lower wiring patterns is required in addition to a thickness of theinterlayer insulating layer 61 for a total thickness of each of the single layer plates. Furthermore, when a conductor (generally composed of copper) is provided by plating at side surfaces of thevia 63 in course of the via-conductor preparation, circulation of a plating liquid is not good due to a minute bore, and a plating growth is difficult since the plating is provided on an insulating material. Therefore, a plating thickness is required to be about 10 μm on the wiring pattern for obtaining a bonding reliability. Accordingly, a total thickness of the wiring pattern is generally about 25 to 30 μm, as a result of addition of the plating thickness to the thickness of the wiring pattern originally provided. For fabricating the multilayer substrate, the thickness of the wiring pattern is required for the number of wiring pattern layers. - The second problem is that a size of a wiring part is large. This is also caused by the via-conductor. The reason is that a wiring pattern forming process is not the same process as a via boring process, dimensions of formed articles should have allowance for absorbing a gap between positions of each of the formed articles in these two processes.
-
FIG. 18D is a schematic plan view of a periphery of a via. - When a conductive part (via-land 65) is positioned to surround around the
via 63 and a pattern (wiring 66) conducted from a part of the via-land 65 is laid out, the via-land 65 is generally formed to have an allowance of about 50 μm greater than a via diameter at one side, and of about 100 μm greater than the via diameter, with considering a positioning precision in the via formation and a positioning precision in the pattern formation, for securely connecting the wiring pattern to be connected to the via-conductor. - In addition, there is so-called flip-chip method for connecting the substrate to the electronic part via the bump, as a method for reducing a size and a thickness of the electronic device. According to this method, bonding electrodes for the substrate can be formed inside the electronic part, so that the electronic device can be miniaturized compared with a case where the electronic part and the substrate are connected with each other via a thin metallic wire. Further, when the above described bonding is conducted by using the metallic wire, a height for installing the thin metallic wire is necessary. In the flip-chip method, this height for installing the thin metallic wire is only a height for installing the bump, so that the miniaturization can be realized. On the other hand, in the flip-chip method, the electrode in the electronic part is small by reason of the minute processing and an interval between the electrodes is dense. Therefore, it is necessary to actually form an internal wiring on the substrate and to determine a position of an external electrode such that the external electrode can be mounted on a mother board for mounting the electronic device, so as to provide the electronic device. Accordingly, forming a thin and small substrate similar to a typical substrate-less package to have multilayers means that the flip-chip method can be adopted in the general core substrate-less package, and it is very important to promote the small sizing and miniaturization of the electronic device.
- Accordingly, it is an object of the present invention to provide an electronic device substrate, an electronic device comprising the electronic device substrate and the methods for fabricating the same in that a multilayer wiring can be provided while having a very thin substrate used in the core substrate-less package.
- According to a first aspect of the invention, an electronic device substrate comprises:
- a core substrate;
- an external connection wiring layer provided on the core substrate comprising an external connection terminal and a first electrical insulating material; and
- a circuit wiring layer laminated for one or more layers comprising an internal conductor pattern and a second electrical insulating material, a surface of the internal conductor pattern being in a same plane as a surface of the second electrical insulating material.
- The electronic device substrate according to the present invention may comprise at least one of following features.
- (1) The circuit wiring layer further comprises a via-hole conductor provided at an aperture of the second electrical insulating material, and the via-hole conductor is integrated with the internal conductor pattern.
- (2) The via-hole conductor comprises one or more plating films.
- (3) An uppermost layer of the circuit wiring layer is an electronic-parts mounting layer, and an uppermost layer of the plating films in the electronic parts-mounting layer is subjected to a surface treatment necessary for connection with an electronic part.
- (4) An uppermost layer of the circuit wiring layer is an electronic-parts mounting layer, and an external conductor pattern is formed on a surface for mounting an electronic part.
- (5) The external conductor pattern comprises a copper foil.
- (6) The core substrate comprises a copper foil, a stainless steel foil, an aluminum foil, an aluminum alloy foil, a nickel foil, a nickel alloy foil, a tin foil or a tin alloy foil
- (7) The core substrate comprises a carrier layer composed of a metal; a separation layer formed on the carrier layer; and a metal layer formed on the separation layer and disposed at a side of the external connection wiring layer.
- (8) An adhesion force between the metal layer and the carrier layer via the separation layer is smaller than that between the metal layer and the external connection wiring layer.
- (9) The separation layer comprises an organic system separation layer or an inorganic system separation layer.
- (10) The metal layer comprises a copper foil, a copper alloy foil, a stainless steel foil, an aluminum foil, an aluminum alloy foil, a nickel foil, a nickel alloy foil, a tin foil or a tin alloy foil.
- (11) The electron device substrate further comprises a supporting substrate attached to the core substrate.
- (12) The supporting substrate comprises an insulating film.
- (13) The second electrical insulating material comprises a solder resist or a photosolder resist.
- (14) The second electrical insulating material comprises a polyimide or an epoxy when provided as an uppermost layer disposed at an opposite side to the core substrate, and comprises a solder resist or a photosolder resist when provided as a layer other than the uppermost layer.
- (15) The internal conductor pattern comprises a copper, a copper alloy, a nickel, or a nickel alloy.
- (16) The via-hole conductor comprises a single layer or a laminated layer composed of a gold, a silver, a copper, a copper alloy, a nickel, a nickel alloy, or palladium.
- (17) The external connection terminal comprises an external connection plating film formed at an aperture of the first electrical insulating film.
- (18) The external connection wiring layer further comprises a tin-diffusion preventing plating film formed at an aperture of the first electrical insulating film, and the tin-diffusion preventing plating film is integrated with the external connection plating film.
- (19) A thickness of the tin-diffusion preventing plating film is 5 μm or more when the tin-diffusion preventing plating film comprises a copper or copper alloy plating, and 3 μm or more when the tin-diffusion preventing plating film comprises a nickel or nickel alloy plating.
- According to a second aspect of the invention, a method for fabricating an electronic device substrate comprises the steps of:
- forming a first electrical insulating material on one side of a core substrate;
- forming an aperture in the first electrical insulating material;
- forming an external connection terminal at the aperture;
- forming an internal conductor pattern on the first electrical insulating material; and
- forming a second electrical insulating material on the first electrical insulating material such that a surface of the second electrical insulating material is in a same plane as a surface of the internal conductor pattern.
- The method for fabricating an electronic device substrate according to the present invention may comprise at least one of following features.
- (1) The method for fabricating an electronic device substrate further comprises the steps of:
- forming an aperture in the second electrical insulating material; and
- forming a via-hole conductor integrally with the internal conductor pattern at the aperture.
- (2) The method for fabricating an electronic device substrate further comprises the steps of:
- laminating an electrical insulating substrate having a copper foil on an uppermost layer; and
- forming an external conductor pattern by processing the copper foil.
- (3) The core substrate comprises a composite substrate comprising a carrier layer, a separation layer, and a metal layer.
- (4) The core substrate comprises a composite substrate comprising a carrier layer, a separation layer, and a metal layer, and a supporting substrate is integrated with the composite substrate.
- (5) The supporting substrate comprises an electrical insulation film having an adhesive, and the supporting substrate is integrated with the composite substrate by using the adhesive.
- (6) The first electrical insulating material is adhered to the core substrate by coating or pressure welding.
- According to a third aspect of the invention, an electronic device comprises:
- an electronic device substrate including:
-
- an external connection wiring layer comprising an external connection terminal and a first electrical insulating material; and
- a circuit wiring layer laminated for one or more layers comprising an internal conductor pattern and a second electrical insulating material, a surface of the internal conductor pattern being in a same plane as a surface of the second electrical insulating material; and
- an electronic part provided on the electronic device substrate.
- The electronic device may comprise according to the present invention at least one of following features.
- (1) The external connection terminal is connected to a solder ball.
- (2) The electronic part is electrically connected to the electronic device substrate via a metal thin wire.
- (3) The electronic part is electrically connected to the electronic device substrate via a bump.
- According to a fourth aspect of the invention, a method of fabricating an electronic device comprises the steps of:
- mounting an electronic part on an electronic device substrate, the electronic device substrate comprising a core substrate, an external connection wiring layer provided on the core substrate comprising an external connection terminal and a first electrical insulating material, and a circuit wiring layer laminated for one or more layers comprising an internal conductor pattern and a second electrical insulating material, a surface of the internal conductor pattern being in a same plane as a surface of the second electrical insulating material;
- electrically connecting a predetermined electrode of the electronic part to the external connection wiring layer;
- coating at least a part for electrically connecting the electronic part to the external connection wiring layer with an insulating coating material; and
- removing the core substrate from the electronic device substrate.
- The method for fabricating an electronic device substrate according to the present invention may comprise at least one of following features.
- (1) The core substrate is removed by chemical dissolution, electrochemical dissolution, machine polishing or combination thereof.
- (2) The core substrate comprises a plurality of layers including at least a separation layer formed between a carrier layer and a metal layer, and a layer including the carrier layer and the metal layer is physically separated from another layer including the metal layer, and the metal layer is removed by chemical dissolution, electrochemical dissolution, machine polishing or combination thereof.
- In the present invention, the electronic part includes chip components such as a capacitor, a transistor, a diode, an electric filter as well as an IC (integrated circuit).
- According to present invention, it is possible to provide an electronic device substrate, an electronic device comprising the electronic device substrate and the methods for fabricating the same in that a multilayer wiring can be provided while having a very thin substrate used in the core substrate-less package.
- Preferred embodiments of the present invention will be described in conjunction with appended drawings, wherein:
-
FIG. 1 is a cross sectional view of an electronic device substrate in a first preferred embodiment according to the present invention; -
FIGS. 2A to 2N are explanatory diagrams showing a manufacturing process of the electronic device substrate ofFIG. 1 ; -
FIGS. 3A and 3B are cross sectional views of an electronic device in a second preferred embodiment according to the present invention, whereinFIG. 3A is a cross sectional view showing an electronic device using the electronic device substrate in the first preferred embodiment, andFIG. 3B is a cross sectional view showing an electronic device using a variation of the electronic device substrate in the first preferred embodiment; -
FIGS. 4A to 4E are explanatory diagrams showing a manufacturing process of the electronic device ofFIG. 3A ; -
FIG. 5 is a cross sectional view of an electronic device substrate in a third preferred embodiment according to the invention; -
FIGS. 6A to 6N are explanatory diagrams showing a manufacturing process of the electronic device substrate ofFIG. 5 ; -
FIGS. 7A to 7G are explanatory diagrams showing a manufacturing process of the electronic device in a fourth preferred embodiment using the electronic device substrate in the third preferred embodiment; -
FIG. 8 is a cross sectional view of an electronic device substrate in a fifth preferred embodiment; -
FIGS. 9A to 9P are explanatory diagrams showing a manufacturing process of the electronic device substrate ofFIG. 8 ; -
FIG. 10 is an explanatory diagram showing a manufacturing process of an electronic device in a sixth preferred embodiment using the electronic device substrate in the fifth preferred embodiment; -
FIG. 11 is a cross sectional view of an electronic device substrate in a seventh preferred embodiment according to the invention; -
FIGS. 12A to 12Q are explanatory diagrams showing a manufacturing process of the electronic device substrate ofFIG. 11 ; -
FIGS. 13A and 13B are cross sectional views of an electronic device in an eighth preferred embodiment according to the invention, whereinFIG. 13A is a cross sectional view showing an electronic device using an electronic device substrate in the seventh preferred embodiment, andFIG. 13B is a cross sectional view showing an electronic device using a variation of the electronic device substrate in the seventh preferred embodiment; -
FIG. 14A to 14G are explanatory diagrams showing a manufacturing process of the electronic device in the eighth preferred embodiment using the electronic device substrate in the seventh preferred embodiment; -
FIG. 15 is a cross sectional view of a BGA type electronic device in an embodiment according to the present invention; -
FIG. 16 is a cross sectional view of a wire bonding type electronic device in an embodiment according to the present invention; -
FIGS. 17A and 17B are cross sectional views of the electronic device substrates in the embodiment according to the present invention, whereinFIG. 17A is a cross sectional view showing the electronic device substrate (four layers), andFIG. 17B is a cross sectional view showing the electronic device substrate (triple layers); and -
FIGS. 18A to 18D are explanatory diagrams showing a via in the electronic device substrate, whereinFIGS. 18A to 18C are cross sectional views for briefly explaining a process of via processing and conductive plating, andFIG. 18D is a schematic plan view of a periphery of the via. - Next, an electronic device, an electronic device substrate, and methods for fabricating the same will be explained in more detail in conjunction with the appended drawings.
- (Configuration of Electronic Device Substrate)
-
FIG. 1 is a cross sectional view of the electronic device substrate in the first preferred embodiment according to the present invention. - An
electronic device substrate 10 comprises a thin plate-likemetal core substrate 11, an externalconnection wiring layer 100 provided on themetal core substrate 11, and an electronic parts-mountinglayer 110 provided on the externalconnection wiring layer 100. - A.
Metal Core Substrate 11 - As for the
metal core substrate 11, a copper foil is most preferable from point of views such as of easiness of procurement, cost, high electrical conductivity, easiness of removal in the final process, however, the present invention is not limited thereto, and a stainless steel foil, an aluminum foil, an aluminum alloy foil, a nickel foil, a nickel alloy foil, a tin foil or a tin alloy foil may be used. - In addition, it is necessary to provide the
metal core substrate 11 with a thickness not less than 20 μm, since a mechanical durability is required in transportation and processing. On the other hand, when an electronic device is fabricated by using theelectronic device substrate 10, themetal core substrate 11 should be finally removed. At this time, if themetal core substrate 11 is thick, a long time is required for the removal process both in a chemical dissolution method and a mechanical polishing method. So as to solve this problem, the thickness of themetal core substrate 11 is reduced by reinforcing with the external connection wiring layer 100 (PSR film 101), so that a time required for the dissolution or polishing in the removal process of themetal core substrate 11 can shorten. For example, the mechanical durability and the abbreviation of the removal processing time may be expected by using the copper foil with a thickness of 12 μm. - B. External
Connection Wiring Layer 100 - The external
connection wiring layer 100 is provided on themetal core substrate 11 and comprises a photosolder resist (referred as “PSR”, hereinafter)film 101 composed of an electrical insulating material that is provided with anaperture 102, to which a conductive plating (afirst plating film 103, asecond plating film 104, and athird plating film 105 when viewed from a side of the metal core substrate 11) is applied. As for thethird plating film 105 that is the uppermost layer of the conductive plating, a surface of thethird plating film 105 is in the same plane as a surface of thePSR film 101. - A combination of the first to
third plating films 103 to 105 and thePSR film 101 constitutes the externalconnection wiring layer 100, and a thickness of the externalconnection wiring layer 100 is determined to be not greater than 30 μm, so as to reduce the thickness of the electronic device. - For the
PSR film 101, an organic resist film such as indissoluble solder resist and photoresist may be used. - The
first plating film 103 is subjected to a surface treatment required for connecting this electronic device to the outside when the electronic device is completed. When the electronic device is mounted by soldering, a gold, a silver, a palladium, a nickel, a tin, a solder plating or the like is suitable. When the electronic device is mounted by pressure welding with using an anisotropic conductive film (ACF), an anisotropic conductive paste (ACP), a non-conductive paste (ACP), a non-conductive film (NCF), a non-conductive paste (NCP) or the like, a gold, a silver, a palladium, a nickel or the like is suitable. - The
second plating film 104 is provided as a barrier layer for preventing diffusion of tin in the solder into the gold or the like (tin-diffusion preventing barrier layer), when the solder is used for connecting the electronic device to the mounting substrate, after an electronic device in the second preferred embodiment described later is fabricated by using the electronic device substrate in the first preferred embodiment. As a material of thesecond plating film 104, a copper plating, a copper alloy plating, a nickel plating, a nickel alloy plating or the like may be used. For example, a thickness of thesecond plating film 104 is not less than 5 μm in a case where the copper or copper alloy plating is used, and not less than 3 μm in a case where the nickel plating or the nickel alloy plating is used. - The
third plating film 105 is provided for taking an electrical connection between theconductive film 113 which is the lowermost layer of the electronic parts-mountinglayer 110 described below at least in one part. As a material of thethird plating film 105, a copper is most preferable from point of views such as high electrical conductivity and cost, however, may be a copper alloy, a nickel, a nickel alloy or the like. Thethird plating film 105 may be the same metal material as thesecond plating film 104, and thesecond plating film 104 may be formed such that a surface thereof is in the same plane as the surface of thePSR film 101. - C. Electronic Parts-
Mounting Layer 110 - The electronic parts-mounting
layer 110 is provided on the external connectingwiring layer 100 and comprises aPSR film 111 that is provided with anaperture 112, to which aconductive film 113 and a conductive plating (afourth plating film 114, afifth plating film 115, and a sixth plating film 116) are applied. The fourth tosixth plating films 114 to 116 are configured with considering the installation of the electronic part and electrical bonding with a metal thin wire. - A combination of the
conductive film 113, the fourth tosixth plating films 114 to 116 and thePSR film 111 constitutes the electronic parts-mountinglayer 110, and a thickness of the electronic parts-mountinglayer 110 is determined to be not greater than 30 μm, so as to reduce the thickness of the electronic device. - For the
PSR film 111, an organic resist film such as an indissoluble solder resist and a photoresist may be used. - The
conductive film 113 is provided for taking an electrical connection with thethird plating layer 105 which is the uppermost layer of the externalconnection wiring layer 100 at least in one part. As a material of theconductive film 113, a copper is most preferable from point of views such as high electrical conductivity and cost, however, may be a copper alloy, a nickel, a nickel alloy or the like. - The
fourth plating film 114 is provided as an intermediate conductive plating for taking an electrical connection between theconductive film 113 and thefifth plating film 115. As a material of thefourth plating film 114, a copper plating (with a thickness of e.g. 10 μm) may be used from point of views such as high electrical conductivity and cost. Other materials such as a copper alloy, a nickel, a nickel alloy or the like may be also used. Thefourth plating film 114 may be the same metal material as thefifth plating film 115. - A material of the
fifth plating film 115 is required to be composed of a hard material, since abump 202 of anelectronic part 201 is electrically connected to thesixth plating film 116 by using supersonic wave, thermo-compression bonding or the combination thereof. As the material of thefifth plating film 115, for example, the nickel which is comparatively hard material may be used (with a thickness of e.g. 0.75 μm). As the material of thefifth plating film 115, a nickel or a palladium is suitable, however, it is not the limited thereto, and other material may be used in accordance with the bonding method of electronic part. - The
sixth plating film 116 is an uppermost layer of the electronic parts-mountinglayer 110 for mounting thebump 202 of theelectronic part 201. Thesixth plating film 116 is subjected to the surface treatment which is necessary for bonding with the electronic part, and provided for taking an electrical connection with thebump 202 of theelectronic part 201. As the material of thesixth plating film 116, a gold, a silver, a palladium or the like may be used. In addition, a gold, a tin, a palladium, a solder plating or the like is required, when the electronic parts on which a gold bump or a solder bump is formed are bonded by the flip-chip method. - (Method for Fabricating the Electronic Device Substrate)
- Next, a method for fabricating the electronic device substrate in the first preferred embodiment will be explained.
-
FIGS. 2A to 2N are explanatory diagrams showing a manufacturing process of the electronic device substrate ofFIG. 1 . - At first, as shown in
FIG. 2A , a copper foil having a thickness of e.g. 12 μm is prepared as ametal core substrate 11. - On one side of the
metal core substrate 11, aPSR film 101 is coated to have a thickness of e.g. 15 μm by screen printing or the like as shown inFIG. 2B . In place of the coating, thePSR film 101 may be bonded by pressure welding. - Next, as shown in
FIG. 2C , thePSR film 101 is covered with aphotomask 107, andUV ray 108 is irradiated at a region to be provided as an external connecting terminal. - As shown in
FIG. 2D , anaperture 102 is formed by development in a desired configuration on thePSR film 101. - Next, as shown in
FIGS. 2E and 2F , afirst plating film 103, asecond plating film 104, and athird plating film 105 are sequentially formed on theaperture 102 by electrolysis plating. A conductive plating film comprising the first tothird plating films 103 to 105 is formed on theaperture 102 to have a predetermined thickness such that a surface of the conductive plating film is on the same plane as a surface of thePSR film 101, to provide an externalconnection wiring layer 100. - As shown in
FIG. 2G , aconductive film 113 composed of the copper or the like is formed in a shape of foil by vacuum deposition on an entire surface of thePSR film 101 and thethird plating film 105. After forming theconductive film 113 as an evaporation film, theconductive film 113 is processed to have a desired configuration by etching or the like. For the formation of theconductive film 113, a technique of bonding a conductive foil with a conductive adhesive may be used other than the vacuum deposition, and also a sputtering method can be used. In addition, it is possible to grow a copper thin film on the entire surface by electroless plating method and to process the copper film to have a desired thickness by electrolysis plating method thereafter. - Next, as shown in
FIGS. 2H and 2I , after forming theconductive film 113 as a wiring by using amask 122 to have a predetermined configuration for mounting the electronic part. - As shown in
FIG. 2J , aPSR film 111 is applied to an upper surface of thePSR film 101 and theconductive film 113. - Next, as shown in
FIGS. 2K and 2L , anaperture 112 is formed at a predetermined position of theconductive film 113 by using aphotomask 123, similarly to a boring process of the externalconnection wiring layer 100. - Next, as shown in
FIGS. 2M and 2N , afourth plating film 114, afifth plating film 115, and asixth plating film 116 are sequentially formed on theaperture 112 by conductive plating to provide an electronic parts-mountinglayer 110. As described above, anelectronic device substrate 10 is fabricated. - (Effect of the First Preferred Embodiment)
- According to the first preferred embodiment, following effects can be obtained.
- (1) The electronic device substrate in the first preferred embodiment has a configuration in which a thin plate-like electrical insulating material is provided with an aperture, a conductor is formed in the aperture of the electrical insulating material, a single layer plate is provided by forming a via-hole conductor that functions as a conductive pattern, and a plurality of single layer plates formed similarly thereto are laminated, while taking a conduction between upper and lower wirings by contacting the aforementioned conductors in the upper and lower layers each other. According to this structure, the wiring patterns conventionally formed on the upper and lower surfaces of the electrical insulating material is embedded in an electrical insulation layer, so that only a thickness of the electrical insulation layer is equivalent to a thickness of a single layer which constitutes a multilayer substrate. As a result, the thickness of the single layer is thinner by a thickness of the wiring pattern than that of a normal substrate. Therefore, it is possible to provide a thin electronic device in that both of a very thin substrate normally found in the core substrate-less package and a multilayer wiring configuration are realized.
- (2) A via configuration is not required, since the wiring patterns between the upper and lower layers are connected with each other by directly laminating the single layer plates as described above as the upper and lower layers. According to this structure, a land of the via-hole for electrically connecting the electronic parts-mounting layer and the external connection wiring layer is also unnecessary. Therefore, it is possible to provide a small sized electronic device by reducing a surface of the wiring pattern while using the multilayer substrate.
- (3) In the configuration of the conventional multilayer substrate, a layer provided for an external connecting terminal and a layer provided for a via-hole are respectively required. According to the first preferred embodiment, these layers can be combined into a single layer, so that it is effective for reducing the thickness of the substrate.
- (Configuration of Electronic Device)
-
FIGS. 3A and 3B are cross sectional views of an electronic device in the second preferred embodiment according to the present invention, whereinFIG. 3A is a cross sectional view showing an electronic device using the electronic device substrate in the first preferred embodiment, andFIG. 3B is a cross sectional view showing an electronic device using a variation of the electronic device substrate in the first preferred embodiment. - In the variation of the electronic device substrate in the first preferred embodiment, a width of the conductive plating films (comprising the first to
third plating films 103 to 105) of the externalconnection wiring layer 100 is made broader than that of the first preferred embodiment, and a width of theconductive film 113 of the electronic parts-mountinglayer 110 and the conductive plating films (comprising the fourth tosixth plating films 114 to 116) are made narrower than that of the first preferred embodiment. Further, both ends of theconductive film 113 and the conductive plating films are dislocated from both sides of the electronic device to a portion in vicinity of a center, namely, a distance from the both sides of the electronic device to theconductive film 113 and the conductive plating films are broadened. - An
electronic device 200A shown inFIG. 3A comprises anelectronic device substrate 10 in the first preferred embodiment and anelectronic part 201 electrically connected to an electronic parts-mountinglayer 110 of theelectronic device substrate 10 via abump 202. However, ametal core substrate 11 of theelectronic device substrate 10 is already removed. - The
electronic part 201 and the electronic parts-mountinglayer 110 are fixed to each other by means of an adhesive 203, so as to reinforce the electrical connection between thebump 202 and the electronic parts-mountinglayer 110. In addition, a circumference of theelectronic part 201 is covered with a sealingresin 204 for protecting theelectronic part 201. - A conductive plating of the external
connection wiring layer 100 of theelectronic device substrate 10 comprises afirst plating film 103 used for external connection, asecond plating film 104 functioning as a barrier layer for preventing a trouble due to diffusion of tin (Sn) in the solder into a metal of an external terminal, when the solder is used for connecting the completed electronic device to an external substrate (mounting substrate: mother board), and athird plating film 105 used for electrically connecting with the electronic parts-mountinglayer 110. - The electronic parts-mounting
layer 110 comprises aconductive film 113 electrically connected to thethird plating film 105 and a fourth tosixth plating films 114 to 116 as via-hole conductors to provide a single unit. Namely, the via-hole conductor is integrated with the plating films. Theconductive film 113 has a function as a via-hole conductor for electrical connection other than a function as an internal circuit wiring (conductor pattern). In other words, an electrical signal of theelectronic part 201 is transmitted to thefirst plating film 103 through thebump 202, the conductive plating films comprising the fourth tosixth plating films 114 to 116 of the electronic parts-mountinglayer 110, theconductive film 113, and the second andthird plating films connection wiring layer 100. - An
electronic device 200B shown inFIG. 3B has a configuration and functions similar to theelectronic device 200A, except that the variation of theelectronic device substrate 10 in the first preferred embodiment is used. - (Method for Fabricating the Electronic Device)
- Next, a method for fabricating the electronic device in the second preferred embodiment will be described with reference to
FIGS. 4A to 4E . -
FIGS. 4A to 4E are explanatory diagrams showing a manufacturing process of the electronic device ofFIG. 3A . - Firstly, an
electronic device substrate 10 in the first preferred embodiment is prepared. Then, as shown inFIG. 4A , abump 202 is provided at an output electrode of theelectronic part 201. - Next, as shown in
FIG. 4B , theelectronic part 201 is bonded by the flip-chip method to asixth plating film 116 of an electronic parts-mountinglayer 110 of theelectronic device substrate 10. - As shown in
FIG. 4C , theelectronic part 201 and the electronic parts-mountinglayer 110 are fixed to each other by means of an adhesive 203, so as to reinforce the electrical connection between thebump 202 and the electronic parts-mountinglayer 110. - Next, as shown in
FIG. 4D , theelectronic part 201 and an electronic parts-mounting surface of the electronic parts-mountinglayer 110 are covered with a sealingresin 204 by transfer molding for protecting theelectronic part 201. - As shown in
FIG. 4E , themetal core substrate 11 is removed by chemical dissolution, electrochemical dissolution, machine polishing or combinations thereof to provide a core substrate-less multilayer wiring typeelectronic device 200A. - The
electronic device 200B shown inFIG. 3B can be fabricated similarly to theelectronic device 200A. - (Effect of the Second Preferred Embodiment)
- According to the second preferred embodiment, following effects can be obtained.
- (1) By using the electronic device substrate in the first preferred embodiment, a thin electronic device can be obtained. In addition, a small electronic device can be obtained.
- (2) By using the electronic device substrate in the first preferred embodiment, the flip-chip bonding can be conducted while using the core substrate-less package. In the conventional core substrate-less package, such a configuration cannot be formed since the internal wiring is same as the external electrode (For example, FIG. 1 of JP-A-2004-253674). In the second preferred embodiment, since the wiring part has a double layer wiring structure by using the core substrate-less package, it is possible to separate the external electrode from the internal wiring, so that a distance between the external electrodes can be varied from a narrow pitch between the electrodes on the electronic part to a pitch required for mounting the electronic device by utilizing the internal wiring.
- (3) As an effect particular to the
electronic device 200B, a width of theconductive film 113 of the electronic parts-mountinglayer 110 and the conductive plating film (comprising the fourth tosixth plating films 114 to 116) are reduced such that the position of theconductive film 113 of the electronic parts-mountinglayer 110 are dislocated from the sides of the electronic device to the center part. Therefore, an area of the electronic device can be reduced compared with that of theelectronic device 200A. - (Configuration of Electronic Device Substrate)
-
FIG. 5 is a cross sectional view of an electronic device substrate in the third preferred embodiment according to the present invention. - An
electronic device substrate 20 has a configuration similar to that of the electronic device substrate in the first preferred embodiment, except that themetal core substrate 11 that is the core substrate is replaced with acopper foil 21 with carrier. Therefore, configurations of the externalconnection wiring layer 100 and the electronic parts-mountinglayer 110 are same as those of the first preferred embodiment. - The
copper foil 21 with carrier comprises ametal layer 22, acarrier layer 24, and aseparation layer 23 disposed between themetal layer 22 and thecarrier layer 24. Themetal layer 22 is facing to aPSR film 101 and afirst plating film 103 of an externalconnection wiring layer 100. - (Method for Fabricating the Electronic Device Substrate)
- Next, a method for fabricating the electronic device substrate in the third preferred embodiment will be explained.
-
FIGS. 6A to 6N are explanatory diagrams showing a manufacturing process of the electronic device substrate ofFIG. 5 . - Firstly, as shown in
FIG. 6A , acopper foil 21 with carrier having a triple layer configuration comprising ametal layer 22, acarrier layer 24 and aseparation layer 23 between themetal layer 22 and thecarrier layer 24 is prepared. - Further, as shown in
FIG. 6B , aPSR film 101 composed of an electrical insulating material is coated at a side where themetal layer 22 is provided, to have a thickness of e.g. 15 μm by screen printing similarly to the first preferred embodiment. - The
copper foil 21 with carrier is a base material in which theseparation layer 23 with a weak adhesive property that can be exfoliated in a post-process is formed on themetal layer 22 composed of a thick metal foil (herein, a copper foil) having a thickness not less than 18 μm, and thecarrier layer 24 composed of a thin metal foil (having a thickness of e.g. 1 to 5 μm) is formed thereon by the electrolytic process, to provide a metal foil (herein, a copper foil). As themetal layer 22, a copper alloy foil, a stainless steel foil, an aluminum foil, an aluminum alloy foil, a tin foil, or a tin alloy foil may be used other than the copper foil. - In addition, the
metal layer 22 and theseparation layer 23 can be separated from each other by mechanical separation in the post-process, by increasing an adhesion force between theseparation layer 23 and thecarrier layer 24 than that between theseparation layer 23 and themetal layer 22. Thisseparation layer 23 may be an organic system separation layer, or an inorganic system separation layer, if the layers have a difference in adhesion force. However, it is preferable to choose the inorganic system separation layer with considering the heat resistance, when the electronic device is fabricated by a process including heat treatment. - Since the following manufacturing process (
FIGS. 6C to 6N ) is similar to that in the first preferred embodiment, an explanation thereof is omitted. - (Effect of Third Preferred Embodiment)
- According to the third preferred embodiment, the effects similar to those of the first preferred embodiment can be obtained.
- Furthermore, since the
copper foil 21 with carrier is used in the third preferred embodiment, a physical separation method can be used in the removal process of thecopper foil 21 with carrier which is the core substrate in the third preferred embodiment, so that a time for removing themetal layer 22 remained after this separation can be shortened. - (Configuration of Electronic Device)
- In the fourth preferred embodiment, an electronic device using the
electronic device substrate 20 in the third preferred embodiment has a configuration similar to that of the second preferred embodiment, since thecopper foil 21 with carrier is removed in the manufacturing process. - (Method for Fabricating the Electronic Device)
- Next, a method for fabricating an electronic device in the fourth preferred embodiment will be described with reference to
FIGS. 7A to 7G . -
FIGS. 7A to 7G are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the third preferred embodiment. - Firstly, an
electronic device substrate 20 in the third preferred embodiment is prepared. - Then, as shown in
FIG. 7A , abump 202 is provided at an output electrode of theelectronic part 201. - Since a part of the manufacturing process (
FIGS. 7B to 7D ) is similar to that in the second preferred embodiment, an explanation thereof is omitted. - Next, as shown in
FIG. 7E , aseparation layer 23 and acarrier layer 24 are removed from ametal layer 22 of acopper foil 21 with carrier by the mechanical separation, so that athin metal layer 22 is remained as shown inFIG. 7F . - Next, as shown in
FIG. 7G , a sulfuric acid-hydrogen peroxide mixed aqueous solution is jetted to themetal layer 22, to remove themetal layer 22 by the chemical dissolution. Etching of themetal layer 22 is conducted until thefirst plating film 103 of the externalconnection wiring layer 100 is exposed. Thefirst plating film 103 functions as etching stopper for themetal layer 22. As described above, the core substrate-less multilayer wiring typeelectronic device 200A can be obtained. In similar manner, theelectronic device 200B can be also obtained. - (Effect of the Fourth Preferred Embodiment)
- According to the fourth preferred embodiment, the effects similar to those of the second preferred embodiment can be obtained.
- Furthermore, since the
copper foil 21 with carrier is used in the fourth preferred embodiment, a time for removing the core substrate can be shortened as described in the effect of the third preferred embodiment. - (Configuration of Electronic Device Substrate)
-
FIG. 8 is a cross sectional view of an electronic device substrate in the fifth preferred embodiment according to the present invention. - An
electronic device substrate 30 has a configuration similar to that of the electronic device substrate in the third preferred embodiment, and further comprises atape member 31 provided on one side (a lower surface) of thecopper foil 21 with carrier, and thecopper foil 21 with carrier is facing to the externalconnection wiring layer 100 at another side (an upper surface thereof). InFIG. 8 , thecopper foil 21 with carrier having theseparation layer 23 between themetal layer 22 and thecarrier layer 24 is illustrated as a single layer for convenience. - The
tape member 31 comprises apolyimide tape 33 as an insulation film, and an adhesive 32 with a thickness of 12 μm coated on thepolyimide tape 33. Thetape member 31 functions as a supporting substrate (holding function) to facilitate a transportation of the electronic device substrate in assembling process of the electronic device. - (Method for Fabricating the Electronic Device Substrate)
- Next, a method for fabricating an electronic device in the fifth preferred embodiment will be described with reference to
FIGS. 9A to 9P . -
FIGS. 9A to 9P are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the fifth preferred embodiment. InFIGS. 9A to 9P , acopper foil 21 with carrier having aseparation layer 23 between ametal layer 22 and acarrier layer 24 is illustrated as a single layer for convenience. - Firstly, as shown in
FIG. 9A , thecopper foil 21 with carrier having a triple layer configuration (metal layer 22/separation layer 23/carrier layer 24) is prepared. - Further, as shown in
FIG. 9B , atape member 31 comprising apolyimide tape 33 coated with an adhesive 32 having a thickness of e.g. 12 μm is prepared as the supporting substrate. - As shown in
FIG. 9C , thecarrier layer 24 of thecopper foil 21 with carrier and the adhesive 32 of thetape member 31 are piled to face to each other, and disposed between a pair ofrolls 0301 a, 301 b. Then thecopper foil 21 with carrier and thetape member 31 are affixed by roll laminating method. By this process, the adhesive 32 of thetape member 31 is bonded to a surface of thecarrier layer 24. - Since the following manufacturing process (
FIG. 9D to 9P ) is similar to that in the first and third preferred embodiments, an explanation thereof is omitted. - (Effect of the Fifth Preferred Embodiment)
- According to the fifth preferred embodiment, the effects similar to those of the first preferred embodiment can be obtained.
- Furthermore, since the
copper foil 21 with carrier and thetape member 31 are used as the core substrate, a physical strength of the whole substrate is increased, so that the substrate is strengthened against a stress applied to the substrate during the substrate manufacturing process and handling of the substrate during the manufacturing process substrate is facilitated. - (Configuration of Electronic Device)
- In the sixth preferred embodiment, an electronic device using the
electronic device substrate 30 in the fifth preferred embodiment has a configuration similar to that of the second preferred embodiment, since thecopper foil 21 with carrier and thetape member 31 as the supporting substrate are removed in the manufacturing process. - (Method for Fabricating the Electronic Device)
- Next, a method for fabricating an electronic device in the sixth preferred embodiment will be described with reference to
FIGS. 10A to 10G . -
FIGS. 10A to 10G are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the fifth preferred embodiment. InFIGS. 10A to 10G , acopper foil 21 with carrier having aseparation layer 23 between ametal layer 22 and acarrier layer 24 is illustrated as a single layer for convenience. - Firstly, an
electronic device substrate 30 in the fifth preferred embodiment is prepared. Then, as shown inFIG. 10A , abump 202 is provided at an output electrode of anelectronic part 201. - Since a part of the manufacturing process (
FIG. 10B to 10D ) is similar to that in the second preferred embodiment, an explanation thereof is omitted. - Next, as shown in
FIG. 10E , theseparation layer 23, thecarrier layer 24, and atape member 31 are removed from themetal layer 22 of thecopper foil 21 by the mechanical separation, so that thethin metal layer 22 is remained as shown inFIG. 10F . - Next, a step (
FIG. 10G ) in the manufacturing process is similar to that in the fourth preferred embodiment, an explanation thereof is omitted. - (Effect of the Sixth Preferred Embodiment)
- According to the six preferred embodiment, the effects similar to those of the second preferred embodiment can be obtained.
- Furthermore, since the
copper foil 21 with carrier is used, a time for removing the core substrate can be shortened as described in the effect of the fourth preferred embodiment. In the meantime, since thetape member 31 is applied to thecopper foil 21 with carrier, a physical strength of the substrate is increased, so that troubles such as cracks of the substrate due to a stress applied to the substrate during the substrate manufacturing process can be avoided as described in the fifth preferred embodiment. - (Configuration of Electronic Device Substrate)
-
FIG. 11 is a cross sectional view of an electronic device substrate in the seventh preferred embodiment according to the present invention. - An
electronic device substrate 40 has a configuration similar to that of the electronic device substrate in the fifth preferred embodiment, except that the electronic parts-mountinglayer 110 is replaced with an electronic parts-mountinglayer 130 using apolyimide material 131 attached with acopper foil 132. InFIG. 11 , acopper foil 21 with carrier having aseparation layer 23 between ametal layer 22 and acarrier layer 24 is illustrated as a single layer for convenience. - An
electronic device substrate 40 comprises acopper foil 21 with carrier provided with atape member 31 as the supporting substrate, an externalconnection wiring layer 100 provided on thecopper foil 21 with carrier, and an electronic parts-mountinglayer 130 provided on the externalconnection wiring layer 100. - Next, configuration of the electronic parts-mounting
layer 130 will be explained below. - On the external
connection wiring layer 100, aconductive film 113 and thepolyimide material 131 having thecopper foil 132 at its upper surface are provided, and aseventh plating film 135 is formed on theconductive film 113. A total thickness of theconductive film 113 and theseventh plating film 135 is determined to be equal to or lower than a thickness of thepolyimide material 131. At least a part of theconductive film 113 is electrically connected to athird plating film 105 that is an uppermost layer of the externalconnection wiring layer 100, and at least a part of theseventh plating film 135 is electrically connected to theconductive film 113. - An
eighth plating film 136 is applied to the upper surface of thepolyimide material 131 in an area equal to or larger than an area of thecopper foil 132 and theseventh plating film 135. Thecopper foil 132 and theseventh plating film 135 are electrically connected to each other. - Furthermore, a
ninth plating film 137 is provided to cover theeighth plating film 136. - A combination of the
conductive film 113, the seventh toninth plating films 135 to 137, thecopper foil 132, and thepolyimide material 131 constitutes the electronic parts-mountinglayer 130, and a thickness of the electronic parts-mountinglayer 130 is determined to be not greater than 50 μm, so as to reduce the thickness of the electronic device. - The seventh to
ninth plating films 135 to 137 are configured with considering the installation of the electronic part and electrical bonding with the metal thin wire. - The
seventh plating film 135 is provided as an intermediate conductive plating for taking an electrical connection between theconductive film 113 and theeighth plating film 136. As a material of theseventh plating film 135, a copper plating is preferable from point of views such as high electrical conductivity and cost. Other materials such as a copper alloy, a nickel, or a nickel alloy may be also used. A thickness of theseventh plating film 135 is determined such that a surface of theseventh plating film 135 is in the same plane as a surface of thepolyimide material 131. - The
eighth plating film 136 is required to be composed of a hard material, since abump 202 of anelectronic part 201 is electrically connected to theninth plating film 137 provided on theeighth plating film 136 by using supersonic wave, thermo-compression bonding or the combination thereof. As the material of theeighth plating film 136, for example, the nickel which is comparatively hard material may be used (with a thickness of e.g. 0.75 μm). As the material of theeighth plating film 136, a nickel or a palladium is suitable, however, it is not the limited thereto, and other materials may be used in accordance with the bonding method of the electronic part. - The
ninth plating film 137 is an uppermost layer of the electronic parts-mountinglayer 130 for mounting theelectronic part 201. Theninth plating film 137 is provided for taking the electrical connection with thebump 202 of theelectronic part 201. As the material of theninth plating film 137, a gold, a silver, a palladium or the like may be used. In addition, a gold, a tin, a palladium or a solder plating or the like is required when the electronic parts, on which a gold bump or a solder bump is formed, are bonded by the flip-chip method. - (Method for Fabricating the Electronic Device Substrate)
- Next, a method for fabricating an electronic device in the seventh preferred embodiment will be described with reference to
FIGS. 12A to 12Q . -
FIGS. 12A to 12Q are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the sixth preferred embodiment. InFIGS. 12A to 12Q, acopper foil 21 with carrier having aseparation layer 23 between ametal layer 22 and acarrier layer 24 is illustrated as a single layer for convenience. - Since a part of the manufacturing process (
FIGS. 12A to 12K ) is similar to that in the fifth preferred embodiment, an explanation thereof is omitted. - As shown in
FIG. 12L , apolyimide material 131 as an insulation film on which acopper foil 132 is attached by adhesive or vacuum deposition is used, and a surface of an externalconnection wiring layer 100 including theconductive film 113 is covered with thepolyimide material 131. Successively, thepolyimide material 131 that is in contact with the externalconnection wiring layer 100 and theconductive film 113 is fusion-bonded by the thermo-compression bonding. - Next, as shown in
FIGS. 12M and 12N , anaperture 134 is formed by using amask 133. As a technique for forming theaperture 134, the etching process is used. Although etching liquid for thepolyimide material 131 is different from that for thecopper foil 132, themask 133 of a single unit can be used for etching of both materials. As other technique, theaperture 134 can formed by using laser treatment. However, the thickness ofcopper foil 132 will be limited. - Next, as shown in
FIG. 12O , thecopper foil 132 provided with theaperture 134 is formed to have a desired shape for mounting an electronic part by etching or the like. - Next, as shown in
FIGS. 12P and 12Q , theseventh plating film 135, theeighth plating film 136, and theninth plating film 137 are sequentially formed on theaperture 134 by conductive plating to provide the electronic parts-mountinglayer 130 having thepolyimide material 131 with thecopper foil 132. As described above, theelectronic device substrate 40 is fabricated. - (Effect of the Seventh Preferred Embodiment)
- According to the seventh preferred embodiment, the effects similar to those of the fifth preferred embodiment can be obtained.
- Furthermore, since the electronic parts-mounting
layer 130 is constituted by laminating single layer materials using thepolyimide material 131 with thecopper foil 132, the number of the wiring layers can be increased by one layer while using a method approximately similar to the fifth preferred embodiment. - (Configuration of Electronic Device)
-
FIGS. 13A and 13B are cross sectional views of an electronic device in the eighth preferred embodiment according to the present invention, whereinFIG. 13A is a cross sectional view showing an electronic device using the electronic device substrate in the seventh preferred embodiment, andFIG. 13B is a cross sectional view showing an electronic device using a variation of the electronic device substrate in the seventh preferred embodiment. - In the variation of the electronic device substrate in seventh preferred embodiment, a width of a
conductive film 113 of an electronic parts-mountinglayer 130 is made narrower than that of the seventh preferred embodiment, such that both ends of theconductive film 113 is dislocated from both sides of the electronic device to a portion in vicinity of a center, namely, a distance from the both sides of the electronic device to theconductive film 113 is broadened. - In
FIGS. 13A and 13B , same reference numerals as the electronic device substrate shown inFIG. 11 are partially omitted. - An
electronic device 300A shown inFIG. 13A comprises anelectronic device substrate 40 in the seventh preferred embodiment and anelectronic part 201 electrically connected to an electronic parts-mountinglayer 130 of theelectronic device substrate 40 via abump 202. However, acopper foil 21 with carrier and atape member 31 of theelectronic device substrate 40 are already removed. - The
electronic part 201 and the electronic parts-mountinglayer 130 are fixed to each other by means of an adhesive 203, so as to reinforce the electrical connection between thebump 202 and the electronic parts-mountinglayer 130. In addition, a circumference of theelectronic part 201 is covered with a sealingresin 204 for protecting theelectronic part 201. - A conductive plating of the external
connection wiring layer 100 of theelectronic device substrate 40 comprises afirst plating film 103 used for external connection, asecond plating film 104 functioning as a barrier layer for preventing a trouble due to diffusion of tin (Sn) in the solder into a metal of an external terminal, when the solder is used for connecting the completed electronic device to an external substrate (mounting substrate: mother board), and athird plating film 105 used for electrically connecting with the electronic parts-mountinglayer 130, that are integrally formed. - The electronic parts-mounting
layer 130 comprises aconductive film 113 electrically connected to thethird plating film 105, aseventh plating film 135 as a via-hole conductor, that are integrally formed, acopper foil 132 as an internal circuit wiring (conductor pattern), and eighth andninth plating films seventh plating film 135 and thecopper foil 132. Theconductive film 113 has a function as a via-hole conductor for electrical connection other than a function as an internal circuit wiring (conductor pattern). In other words, an electrical signal of theelectronic part 201 is transmitted to thefirst plating film 103 through thebump 202, the conductive plating films comprising the seventh toninth plating films 135 to 137 of the electronic parts-mountinglayer 130, theconductive film 113, and thethird plating films 105 and thesecond plating films 104 of the externalconnection wiring layer 100. - An
electronic device 300B shown inFIG. 13B has a configuration and functions similar to theelectronic device 300A, except that the variation of theelectronic device substrate 40 in the seventh preferred embodiment is used. - (Method for Fabricating the Electronic Device)
- Next, a method for fabricating an electronic device in the eighth preferred embodiment will be described with reference to
FIGS. 14A to 14G . -
FIGS. 14A to 14G are explanatory diagrams showing a manufacturing process of the electronic device using the electronic device substrate in the seventh preferred embodiment. InFIGS. 14A to 14G , acopper foil 21 with carrier having aseparation layer 23 between ametal layer 22 and acarrier layer 24 is illustrated as a single layer for convenience. - Since the manufacturing process (
FIGS. 14A to 14G ) is similar to that in the fifth preferred embodiment except that theelectronic device substrate 30 is replaced with theelectronic device substrate 40 comprising the electronic parts-mountinglayer 130, an explanation thereof is omitted. - (Effect of the Eighth Preferred Embodiment)
- According to the eighth preferred embodiment, the effects similar to those of the second preferred embodiment can be obtained.
- Furthermore, as described in the seventh preferred embodiment, since the electronic parts-mounting
layer 130 is constituted by laminating single layer materials using thepolyimide material 131 with thecopper foil 132, the number of the wiring layers can be increased by one layer, so that the electronic device with higher function can be realized. - Still further, as an effect particular to the
electronic device 300B, a width of theconductive film 113 of the electronic parts-mountinglayer 130 is reduced such that the position of theconductive film 113 of the electronic parts-mountinglayer 130 is dislocated from the sides of the electronic device to the center part, so that an area of the electronic device can be reduced compared with that of theelectronic device 300A. - The present invention is not limited to the preferred embodiments as described above, and can be changed within a scope of the invention which is not deviated from or goes beyond the technical concept of the present invention.
- (1)
FIG. 15 is a cross sectional view of a BGA type electronic device in the other embodiment according to the present invention. In the preferred embodiments as described above, a LGA (land Grid Array) type electronic device, in which an external output terminal is an intact plating, is shown as an example. However, a BGA (Ball Grid Array) type electronic device using asolder ball 205 as the external output terminal may be used like anelectronic device 400 shown inFIG. 15 . For this case, it is advantageous in that the bonding between the electronic device and the mounting substrate can be easily implemented by using the solder ball. - (2)
FIG. 16 is a cross sectional view of a wire bonding type electronic device in another embodiment according to the present invention. - In the preferred embodiments as described above, the flip-chip method is used for mounting the
electronic part 201 by means of thebump 202. Other than the flip-chip bonding, like an electronic device as shown inFIG. 16 , theelectronic part 201 may be bonded to the electronic parts-mountinglayer 110 by die-bonding to provide an electrical signal connection by wire bonding using a thin metallic wire (e.g. Au-wire 206). For this case, it is advantageous in that the wire bonding method with a high general versatility compared with the flip-chip method can be used. - (3) In the preferred embodiments as described above, examples using a single
electronic part 201 are shown. However, so-called multi-chip package equipped with several components may be used without any problem. - (4) The present invention may be applied to an electronic device in which several electronic parts are installed in a shape of array in a unit area then collectively sealed with resin, and cut into single pieces respectively corresponding to a unit device by dicing or the like. For this case, the electronic device manufacturing process can be conducted under a batch processing, so that a time required for fabricating the single piece of the electronic device can be shortened, compared with a case where the electronic devices are fabricated by piece by piece.
- (5) In the preferred embodiments as described above, examples of double wiring layer substrate configuration are shown. However, it is also possible to provide the configuration in that more than three wiring layers are laminated, and the present invention can be applied to the multilayer wiring substrate.
- For example,
FIGS. 17A and 17B are cross sectional views of the electronic device substrates in the preferred embodiments according to the present invention, whereinFIG. 17A is a cross sectional view showing the electronic device substrate (four layers), andFIG. 17B is a cross sectional view showing the electronic device substrate (triple layers). - The electronic device substrate (four layers) 50A shown in
FIG. 17A comprises aninternal wiring layer 1 and anotherinternal wiring layer 2 between an externalconnection wiring layer 100A and an electronic parts-mountinglayer 110. Each of theinternal wiring layers conductive film 113 as a circuit wiring (wiring pattern), afourth plating film 114 as a via-hole conductor, and afifth plating film 115 in an aperture of a PSR film 111 (thefifth plating film 115 may be omitted). Since theinternal wiring layer 2 is provided between theinternal wiring layer 1 and the electronic parts-mountinglayer 110, wirings of theinternal wiring layer 1 and electronic parts-mountinglayer 110 can be disposed in a shifted (or torsional) relationship, so that an increase in the area of the electronic device can be prevented, while avoiding a short circuit. In addition, since theinternal wiring layer 1 is provided on the externalconnection wiring layer 100A, the circuit wiring part is not exposed to a lower (back) surface of the electronic device, so that it is possible to prevent the wirings from the short circuit due to the solder for mounting. - On the other hand, the electronic device substrate (triple layers) 50B shown in
FIG. 17B comprises a singleinternal wiring layer 2 between an externalconnection wiring layer 100B and an electronic parts-mountinglayer 110. The externalconnection wiring layer 100A has functions of both of theinternal wiring layer 1 and the externalconnection wiring layer 100B in theelectronic device substrate 50A. As a result, there is an advantage in that one layer in the multilayer configuration can be reduced compared with theelectronic device substrate 50A. In thefirst plating film 103, a part closed to a center part of the externalconnection wiring layer 100B constitutes a circuit wiring, so that the circuit wiring is exposed during the electronic device manufacturing process. Therefore, it is preferable to conduct a treatment for preventing the short circuit due to the solder for mounting. - An electronic device with more than five layers can be realized by laminating the internal wiring layers, similarly to the electronic device with triple layers and the electronic device with four layers.
- (6) In the preferred embodiments as described above, semiconductor devices are shown as examples. However, the substrate in the present invention may be employed as a substrate used in electronic parts such as a capacitor, resistor, coil and a functional component such as a sensor, microphone, other than the semiconductor devices. In particular, the present invention is preferably applied to the electronic device used in a mobile telephone or IC card that is required to be thin and small.
- Although the invention has been described with respect to the specific embodiments for complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art which fairly fall within the basic teaching herein set forth.
Claims (34)
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JP2006141336A JP4431123B2 (en) | 2006-05-22 | 2006-05-22 | Electronic device substrate and manufacturing method thereof, and electronic device and manufacturing method thereof |
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US10515884B2 (en) | 2015-02-17 | 2019-12-24 | Advanced Semiconductor Engineering, Inc. | Substrate having a conductive structure within photo-sensitive resin |
US10002843B2 (en) | 2015-03-24 | 2018-06-19 | Advanced Semiconductor Engineering, Inc. | Semiconductor substrate structure, semiconductor package and method of manufacturing the same |
CN105161436B (en) * | 2015-09-11 | 2018-05-22 | 柯全 | The method for packing of flip-chip |
US9820386B2 (en) | 2016-03-18 | 2017-11-14 | Intel Corporation | Plasma etching of solder resist openings |
CN109545691B (en) * | 2018-11-16 | 2021-03-26 | 华进半导体封装先导技术研发中心有限公司 | Manufacturing method of ultrathin fan-out type packaging structure |
US10910336B2 (en) * | 2019-01-29 | 2021-02-02 | Shih-Chi Chen | Chip package structure |
US20210247691A1 (en) * | 2020-02-12 | 2021-08-12 | Hutchinson Technology Incorporated | Method For Forming Components Without Adding Tabs During Etching |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040112724A1 (en) * | 2002-12-12 | 2004-06-17 | Wong Marvin Glenn | Volume adjustment apparatus and method for use |
US20060192287A1 (en) * | 2005-02-07 | 2006-08-31 | Kenta Ogawa | Interconnecting substrate and semiconductor device |
US7187559B2 (en) * | 2001-12-13 | 2007-03-06 | Sony Corporation | Circuit board device and its manufacturing method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004039867A (en) | 2002-07-03 | 2004-02-05 | Sony Corp | Multilayer wiring circuit module and its manufacturing method |
JP3983146B2 (en) | 2002-09-17 | 2007-09-26 | Necエレクトロニクス株式会社 | Manufacturing method of multilayer wiring board |
JP4245370B2 (en) | 2003-02-21 | 2009-03-25 | 大日本印刷株式会社 | Manufacturing method of semiconductor device |
-
2006
- 2006-05-22 JP JP2006141336A patent/JP4431123B2/en not_active Expired - Fee Related
-
2007
- 2007-02-01 US US11/701,337 patent/US7939935B2/en not_active Expired - Fee Related
- 2007-02-15 KR KR1020070015952A patent/KR100878649B1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7187559B2 (en) * | 2001-12-13 | 2007-03-06 | Sony Corporation | Circuit board device and its manufacturing method |
US20040112724A1 (en) * | 2002-12-12 | 2004-06-17 | Wong Marvin Glenn | Volume adjustment apparatus and method for use |
US20060192287A1 (en) * | 2005-02-07 | 2006-08-31 | Kenta Ogawa | Interconnecting substrate and semiconductor device |
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Also Published As
Publication number | Publication date |
---|---|
JP2007311688A (en) | 2007-11-29 |
JP4431123B2 (en) | 2010-03-10 |
US7939935B2 (en) | 2011-05-10 |
KR100878649B1 (en) | 2009-01-15 |
KR20070112702A (en) | 2007-11-27 |
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